US20240164429A1 - Dissolvable-chewable tobacco tablet - Google Patents
Dissolvable-chewable tobacco tablet Download PDFInfo
- Publication number
- US20240164429A1 US20240164429A1 US18/397,575 US202318397575A US2024164429A1 US 20240164429 A1 US20240164429 A1 US 20240164429A1 US 202318397575 A US202318397575 A US 202318397575A US 2024164429 A1 US2024164429 A1 US 2024164429A1
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- US
- United States
- Prior art keywords
- tobacco
- dissolvable
- weight percent
- chewable
- tablet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
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- 230000035900 sweating Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229940033134 talc Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 235000019149 tocopherols Nutrition 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
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- 239000011709 vitamin E Substances 0.000 description 1
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- 230000002087 whitening effect Effects 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B13/00—Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
- A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
- A24B15/303—Plant extracts other than tobacco
Definitions
- dissolvable-chewable tobacco tablets can include tobacco plant tissue within a solid solution of soluble fiber and one or more sugar alcohols.
- Smoking tobacco is combusted and the aerosol either tasted or inhaled (e.g., in a cigarette, cigar, or pipe).
- Smokeless tobacco products are not combusted and include: chewing tobacco, moist smokeless tobacco, snus, and dry snuff.
- Chewing tobacco is coarsely divided tobacco leaf that is typically packaged in a large pouch-like package and used in a plug or twist.
- Moist smokeless tobacco is a moist, more finely-divided tobacco that is provided in loose form or in pouch form and is typically packaged in round cans and used as a pinch or in a pouch placed between an adult tobacco consumer's cheek and gum.
- Snus is a heat treated smokeless tobacco.
- Dry snuff is finely-ground tobacco that is placed in the mouth or used nasally.
- a dissolvable-chewable tobacco tablet provided herein provides a satisfying tactile and/or flavor experience.
- a dissolvable-chewable tobacco tablet provided herein is at least partially receivable in an oral cavity of an adult tobacco consumer.
- a dissolvable-chewable tobacco tablet provided herein is wholly receivable in an oral cavity.
- a dissolvable-chewable tobacco tablet provided herein can include a solid solution of soluble fiber and one or more sugar alcohols with tobacco plant tissue dispersed therein.
- a dissolvable-chewable tobacco tablet provided herein includes at least 20 weight percent of soluble fiber.
- soluble fiber in a dissolvable-chewable tobacco tablet provided herein can include digestion-resistant maltodextrin.
- a dissolvable-chewable tobacco tablet provided herein includes at least 20 weight percent of one or more sugar alcohols.
- a dissolvable-chewable tobacco tablet provided herein can be adapted to release the tobacco plant tissue therefrom when received within the oral cavity of an adult tobacco consumer and/or chewed by an adult tobacco consumer.
- a dissolvable-chewable tobacco tablet provided herein can, in some cases, include between 1 and 40 weight percent tobacco plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 5 and 35 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 10 and 30 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 15 and 25 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 1 and 10 weight percent plant tissue.
- tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of less than 200 micrometers, less than 150 micrometers, less than 125 micrometers, less than 100 micrometers, less than 75 micrometers, less than 50 micrometers, less than 25 micrometers, less than 20 micrometers, or less than 10 micrometers.
- tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of at least 1 micrometer, at least 5 micrometers, at least 10 micrometers, at least 25 micrometers, at least 50 micrometers, at least 75 micrometers, at least 100 micrometers, at least 125 micrometers, or at least 150 micrometers. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of between 25 and 125 micrometers.
- a solid solution of soluble fiber and one or more sugar alcohols provided herein can have a glass transition temperature selected to provide a stable product at ambient temperatures, but that is chewable at body temperature.
- the glass transition temperature of a dissolvable-chewable tobacco tablet provided herein can be selected such that it is relatively close to ambient temperature, which can permit an adult tobacco consumer to experience an enjoyable tactile experience (e.g., mouth feel).
- a dissolvable-chewable tobacco tablet provided herein can include a single and continuous phase of the solid solution and dispersed particles of tobacco plant tissue. At ambient temperatures, the solid solution can be amorphous and glassy.
- a method of making dissolvable-chewable tobacco tablets includes forming a molten mixture of at least 20 weight percent soluble fiber, at least 20 weight percent of one or more sugar alcohols, tobacco, and less than 15 weight percent water while maintaining a mixture temperature of less than 150° C. and portioning the molten mixture into a plurality of dissolvable-chewable tobacco tablets.
- the ingredients can be mixed to form the molten mixture in an extruder and individual dissolvable-chewable tobacco tablets formed from the molten mixture as it leaves the extruder.
- Plasticizers, such as oil can be added to the molten mixture (e.g., in an extruder).
- oil is added to increase the chewiness of a dissolvable-chewable tobacco tablet provided herein.
- oil can be added to a molten mixture to cool the molten mixture to a temperature such that the molten mixture becomes a solid solution having some shape stability.
- methods provided herein include a controlled mixing and heating of soluble fiber and sugar alcohols to form a molten mixture and dispersing tobacco (and optionally other ingredients) in the solid solution without creating significant crosslinking of the sugar alcohols.
- tobacco plant tissue can degrade when exposed to temperatures in excess of 150° C.
- a temperature of a molten mixture provided herein can be maintained at a temperature of 150° C. or below.
- a molten mixture provided herein is heated to a maximum temperature of between 80° C. and 150° C.
- a molten mixture provided herein is heated to a temperature of between 100° C.
- a molten mixture provided herein solidifies into an amorphous, non-porous, glassy, body consisting of a single and continuous phase of the solid solution and dispersed additives (e.g., oil, tobacco fibers). Because the soluble fibers and sugar alcohols do not become cross-linked, they can remain soluble and thus dissolve when placed in an adult tobacco consumer's mouth.
- dispersed additives e.g., oil, tobacco fibers
- a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant soluble fiber.
- a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant maltodextrin derived from maze.
- FIBERSOL®-2 is a digestion-resistant corn-derived maltodextrin soluble fiber, which can be used as the soluble fiber in a dissolvable-chewable tobacco tablet provided herein.
- Other starch sources such as potato, rice, wheat, barley, peas, beans, lentils, oats, or tapioca can be processed to form digestion-resistant soluble fiber.
- a digestion-resistant soluble fiber can include starch linkages that remain undigested by enzymes of the human digestive tract.
- Soluble fiber used in a dissolvable-chewable tobacco tablet provided herein can be a soluble fiber generally recognized as safe (“GRAS”) by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- GRAS soluble fiber generally recognized as safe
- a dissolvable-chewable tobacco tablet provided herein can include one or more sugar alcohols selected from the following group mannitol, sorbitol, xylitol, erythritol, isomalt, lactitol, maltitol, maltitol syrup, and hydrogenated starch hydrolysates [HSH].
- a dissolvable-chewable tobacco tablet provided herein can include two or more sugar alcohols.
- a dissolvable-chewable tobacco tablet provided herein can include mannitol and sorbitol.
- Sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be generally recognized as safe (“GRAS”) by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- a dissolvable-chewable tobacco tablet provided herein can, in some cases, include up to 15 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 0.5 weight percent and 7 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 1 weight percent and 5 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 2 weight percent and 4 weight percent water.
- a dissolvable-chewable tobacco tablet provided herein can include a sweetener dispersed therein. Suitable sweeteners include saccharine, sucralose, aspartame, acesulfame potassium, and combinations thereof.
- a dissolvable-chewable tobacco tablet provided herein can be substantially free of sugars.
- a dissolvable-chewable tobacco tablet can be substantially free of sugars, but include one or more sugar alcohols and non-nutritive sweeteners.
- a dissolvable-chewable tobacco tablet provided herein can include non-caramelized sugars in a percentage of no more than 25 weight percent.
- a dissolvable-chewable tobacco tablet provided herein can include flavorants.
- the flavorants can be natural or artificial.
- Flavorants can be selected from the following: licorice, wintergreen, cherry and berry type flavorants, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cinnamon, cardamon, apium graveolens, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, Japanese mint, cassia, caraway, cognac, jasmin, chamomile, menthol, ylang-ylang, sage, fennel, pimenta, ginger, anise, chai, coriander, coffee, mint oils from a species of the genus Mentha, cocoa, and combinations thereof.
- Synthetic flavorants can also be used.
- the particular combination of flavorants can be selected from flavorants that are GRAS in
- a dissolvable-chewable tobacco tablet provided herein can include a plasticizer dispersed in the solid solution.
- the plasticizer can be propylene glycol, triacetin, glycerin, vegetable oil, triglycerides, or a combination thereof.
- Plasticizers can be added as processing aids and/or to make a dissolvable-chewable tobacco tablet chewier.
- oil can be added to a molten mixture including sugar alcohol(s), soluble fibers, and tobacco to cool the molten mixture.
- a dissolvable-chewable tobacco tablet provided herein can include oil dispersed within a matrix of a solid solution provided herein.
- a body of a dissolvable-chewable tobacco tablet provided herein can have a variety of different shapes, some of which include disk, shield, heart, rectangle, and square. In some cases, a body of a dissolvable-chewable tobacco tablet provided herein can have rounded corners. In some cases, the body of the dissolvable-chewable tobacco tablet can be spherical. According to certain embodiments, the body can have a length or width of between 1 mm and 25 mm and a thickness of between 1 mm and 25 mm. In some cases, the body can have a length or width of between 5 mm and 15 mm and a thickness of between 2 mm and 5 mm.
- a dissolvable-chewable tobacco tablet provided herein can include a colorant.
- a body of a dissolvable-chewable tobacco tablet provided herein can include titanium dioxide, which can provide the body with a white color.
- a coating on the body can include a colorant.
- a method of forming dissolvable-chewable tobacco tablets can include forming a molten mixture of at least 20 weight percent soluble fiber, at least 20 weight percent of one or more sugar alcohols, tobacco plant tissue (e.g., tobacco particles), and less than 15 weight percent water, while maintaining a mixture temperature of less than 150° C.
- the molten mixture includes at less than 13 weight percent, less than 10 weight percent, less than 8 weight percent, less than 7 weight percent, less than 6 weight percent, or less than 5 weight percent water.
- the molten mixture includes at least 0.5 weight percent, at least 1 weight percent, at least 2 weight percent, or at least 3 weight percent water.
- a molten mixture provided herein can include one or more additives selected from colorants, sweeteners, flavorants, plasticizers, antioxidants, processing aids, and combinations thereof.
- the molten mixture is substantially sugars.
- the molten mixture provided herein is formed in an extruder.
- the extruder can be a multi-staged extruder having different sections that are heated to different temperatures and/or have different ingredients introduced.
- an extruder provided herein can include multiple stages and can be used in a method provided herein in a process where the maximum temperature in any stage is no more than 150° C. (e.g., no more than 120° C., no more than 110° C., or no more than 105° C.). Portioning the molten mixture provided herein can be accomplished using any suitable method.
- a method provided herein can further include cooling dissolvable-chewable tobacco tablets and packaging dissolvable-chewable tobacco tablets.
- FIG. 1 is a perspective view of a dissolvable-chewable tobacco tablet provided herein.
- FIGS. 1 A- 1 O illustrates various additional exemplary shapes of dissolvable-chewable tobacco tablets provided herein.
- FIG. 2 depicts differential scanning calorimetry data for sorbitol provided herein.
- FIG. 3 depicts differential scanning calorimetry data for maltodextrin provided herein.
- FIG. 4 depicts differential scanning calorimetry data for mannitol provided herein.
- FIG. 5 is a process diagram for making dissolvable-chewable tobacco tablets according to a method provided herein.
- the dissolvable-chewable tobacco tablets described herein include a solid solution of soluble fiber and one or more sugar alcohols. Tobacco plant tissue (and optionally additional additives) can be dispersed in the solid solution such that the tobacco flavor, tobacco particles, and/or various additives are released from the dissolvable-chewable tobacco tablet when the dissolvable-chewable tobacco tablet is chewed and/or dissolved within an adult tobacco consumer's oral cavity.
- the dissolvable-chewable tobacco tablets described herein can provide a favorable additive release profile and tactile experience.
- a dissolvable-chewable tobacco tablet provided herein includes unbound tobacco in the solid solution.
- tobacco plant tissue refers to processed or non-processed cellulosic parts (e.g., leaves, stems) of a member of the genus Nicotiana , but does not include extracts of tobacco (e.g., tobacco-derived nicotine).
- dissolvable-chewable tobacco tablets can be made by forming a solid solution of soluble fiber and one or more sugar alcohols in a controlled heating and mixing process maintained at a temperature of 150° C. or below.
- the solid solutions described herein exhibit a glass transition temperature (Tg) in the range of ⁇ 75° C. to 40° C. Because tobacco degradation can be accelerated when exposed to elevated temperatures over extended periods of time, the temperature of a molten mixture provided herein can be maintained at a temperature of 150° C. or below over a residence time of five to ten minutes or less during the mixing (for example, if an extrusion process is utilized).
- an extruder can be used for this controlled heating and mixing process.
- a desired texture of the chewable dissolvable tablet can be determined by the selection and weight percentages of the soluble fiber and sugar alcohol(s) and the mixing process conditions.
- a dissolvable-chewable tobacco tablet provided herein can include maltodextrin as the soluble fiber.
- a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent maltodextrin.
- the soluble fiber can be digestion resistant soluble fiber (e.g., digestion resistant maltodextrin such as FIBERSOL®-2).
- the T g of the mixture can be altered and therefore the desired final texture of the product.
- plasticizers can be incorporated into a dissolvable-chewable tobacco tablet provided herein to make it more chewable.
- one or more additional additives can be included in a dissolvable-chewable tobacco tablet provided herein and adapted to be released from the dissolvable-chewable tobacco tablet when the dissolvable-chewable tobacco tablet is placed in an oral cavity and chewed by an adult tobacco consumer.
- a dissolvable-chewable tobacco tablet provided herein can take up to 4 hours, up to 3 hours, up to 2 hours, or up to 1 hour to dissolve when placed in an adult tobacco consumer's mouth. Chewing can increase the rate of dissolution. In some cases, a dissolvable-chewable tobacco tablet provided herein can take less than 1 minute or up to 30 minutes to dissolve when placed in an adult tobacco consumer's mouth. In some cases, a dissolvable-chewable tobacco tablet provided herein can take between 2 minutes and 15 minutes to dissolve when placed in an adult tobacco consumer's mouth.
- a dissolvable-chewable tobacco tablet can also include fillers, plasticizers, and/or processing aids. Fillers can also be included in the solid solution to alter the texture or pliability of the dissolvable-chewable tobacco tablet.
- the solid solution can also include plasticizers, which can increase the softness and/or chewability of the dissolvable-chewable tobacco tablet.
- Processing aids can also be present in the dissolvable-chewable tobacco tablet and be used to facilitate shaping processes.
- FIG. 1 depicts an example of a dissolvable-chewable tobacco tablet 110 .
- the dissolvable-chewable tobacco tablet 110 has a shield shape.
- the dissolvable-chewable tobacco tablet 110 can have a length of about 16 mm, a width of about 14 mm and a thickness of about 9 mm.
- the dissolvable-chewable tobacco tablet 110 can be molded into any desired shape.
- dissolvable-chewable tobacco tablets 110 A-L can be formed in shapes that promote improved positioning in the oral cavity, improved packaging characteristics, or both.
- the dissolvable-chewable tobacco tablet 110 A-L can be configured to be: (A) an elliptical-shaped dissolvable-chewable tobacco tablet 110 A; (B) an elongated elliptical-shaped dissolvable-chewable tobacco tablet 110 B; (C) a semi-circular dissolvable-chewable tobacco tablet 110 C; (D) a square or rectangular-shaped dissolvable-chewable tobacco tablet 110 D; (E) a football-shaped dissolvable-chewable tobacco tablet 110 E; (F) an elongated rectangular-shaped dissolvable-chewable tobacco tablet 110 F; (G) a boomerang-shaped dissolvable-chewable tobacco tablet 110 G; (H) a rounded-edge rectangular-shaped dissolvable-chewable tobacco tablet 110 H; (I) a teardrop- or comma-shaped dissolvable-chewable tobacco tablet 110 I; (J) a bowtie-shaped dissolvable-chewable tobacco tablet 110 J
- the dissolvable-chewable tobacco tablet can have different thicknesses or dimensionality, such that a beveled article (e.g., a wedge) is produced (see, for example, product 110 M depicted in FIG. 1 M ) or a hemi-spherical shape is produced.
- a beveled article e.g., a wedge
- the dissolvable-chewable tobacco tablet has a shield shape.
- the dissolvable-chewable tobacco tablet 110 can be embossed or stamped with a design (e.g., a logo, an image, or the like).
- the dissolvable-chewable tobacco tablet 110 O can be embossed or stamped with any type of design 117 including, but not limited to, a trademark, a product name, or any type of image.
- the design 117 can be formed directly into the dissolvable-chewable tobacco tablet, arranged along the exterior of the product 110 O.
- the design 117 can also be embossed or stamped into those embodiments with a dissolvable film 116 applied thereto.
- the dissolvable-chewable tobacco tablet 110 can be wrapped or coated in an edible or dissolvable film, which may be opaque, substantially transparent, or translucent.
- the dissolvable film can readily dissipate when the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity.
- the dissolvable-chewable tobacco tablet 110 can be coated with a mouth-soluble material.
- Exemplary coating materials include Carnuba wax, Beeswax, gelatin, acetylated monoglyceride, starch (e.g., native potato starch, high amylose starch, and hydroxypropylated potato starch), Zein, Shellac, ethyl cellulose, methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, and combinations thereof.
- Additives, such as miglycol, titanium dioxide, kaoline, bentonite can be incorporated into the coating material to improve oxygen or moisture barrier and mechanical properties for the coating or film.
- a coating can include a combination of gelatin, methylcellulose, or gelatin and hydroxymethylcellulose.
- the coating can contain sugar alcohols such as sorbitol, mannitol, xylitol, erythritol), disaccharide-derived (e.g., isomalt, lactitol, maltitol), or polysaccharide-derived mixtures (e.g., maltitol syrup, hydrogenated starch hydrolysates [HSH]) or combinations thereof.
- a coating material can contain sugar alcohols and hydroxymethylcellulose, gelatin, wax, with additives.
- a coating material can include a plasticizer.
- a coating can include a colorant, a flavorant, and/or a one or more of the additives discussed above.
- the solid solution can form a body that can have surfaces roughened to improve the adherence of a coating.
- a coating can provide a glossy or semi-glossy appearance, a smooth surface, and/or an appealing visual aesthetic (e.g., a nice color).
- the coating e.g., a Beeswax, Carnuba wax, Zein, acetylated monoglyceride, and/or hydroxypropylated potato starch coating
- the coating e.g., a methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, ethyl cellulose, and/or gelatin coating
- One or more dissolvable-chewable tobacco tablets 110 can be packaged in a variety of conventional and non-conventional manners.
- a plurality of dissolvable-chewable tobacco tablets 110 can be packaged in a container having a lid.
- a plurality of dissolvable-chewable tobacco tablets 110 can be stacked and packaged in a paper, plastic, and/or aluminum foil tube.
- the packaging can have a child-resistant lid.
- the dissolvable-chewable tobacco tablet 110 can provide a favorable tactile experience (e.g., mouth feel). While the dissolvable-chewable tobacco tablet 110 can retain its shape during processing, shipping, handling, the dissolvable-chewable tobacco tablet 110 includes a solid solution that dissolves or disintegrates when the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity, exposed to saliva, and/or chewed. Prior to dissolution or disintegration, the dissolvable-chewable tobacco tablet 110 in an oral cavity undergoes a phase transition from a glassy state to a rubbery state then finally into to a viscous state.
- a favorable tactile experience e.g., mouth feel
- the dissolvable-chewable tobacco tablet 110 includes a solid solution that dissolves or disintegrates when the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity, exposed to saliva, and/or chewed. Prior to dissolution or disintegration, the dissolvable-chewable tobacco tablet 110 in an oral cavity undergoes a
- dissolvable-chewable tobacco tablet 110 can be formulated to exhibit a smooth texture. Working of the dissolvable-chewable tobacco tablet 110 within the oral cavity can accelerate the release of the tobacco within the solid solution.
- the environment surrounding the dissolvable-chewable tobacco tablet 110 transitions from room temperature (e.g., ⁇ 25° C.) to body temperature (e.g., ⁇ 37° C.).
- room temperature e.g., ⁇ 25° C.
- body temperature e.g., ⁇ 37° C.
- One way of characterizing the properties of the dissolvable-chewable tobacco tablet 110 is by determining the phase transition points of the dissolvable-chewable tobacco tablet using differential scanning calorimetry (DSC).
- DSC differential scanning calorimetry
- the dissolvable-chewable tobacco tablet 110 is composed of various ingredients, therefore, the thermal transitions of the dissolvable-chewable tobacco tablet can differ not only due to the individual properties of each ingredient, but also due to the ratios of those ingredients.
- FIG. 3 shows the DSC for pure maltodextrin as a reference sample.
- the mixture of mannitol, sorbitol and maltodextrin can be amorphous. Therefore the product does not have “crumbly” texture in the chewable product.
- the multiple phases in the dissolvable-chewable tobacco tablet are visible through x-ray microtomography. A soluble fiber, sugar alcohol, and tobacco mixture appears as a dense matrix domain, while the oil is partitioned in the oil domains.
- the dissolvable-chewable tobacco tablet 110 can have a variety of colors. In some cases, the dissolvable-chewable tobacco tablet 110 has an off-white color.
- Titanium dioxide (TiO 2 ) can be added to the soluble fiber and sugar alcohol mixture. In a scanning electron microscope image, the dark voids dispersed throughout the dense matrix can indicate pockets of oil, flavor.
- natural and artificial coloring can be added to a molten mixture that forms the solid solution during a molding process to form dissolvable-chewable tobacco tablets 110 having a predetermined color. Encapsulated flavors can be added during the extrusion process to create speckles, patterns, or dots within a dissolvable-chewable tobacco tablet.
- Soluble fiber dissolves in ambient water. Insoluble fiber does not dissolve in ambient water. Soluble fibers can attract water and form a gel. Not only are many soluble fibers safe for consumption, but some soluble fibers are used as a dietary supplement. As a dietary supplement, soluble fiber can slow down digestion and delay the emptying of a stomach. Instead of using soluble fiber as a mere additive, however, dissolvable-chewable tobacco tablets provided herein include a solid solution of soluble fiber and sugar alcohols that can be combined with tobacco (and optionally other additives) to provide a satisfying tactile and/or flavor experience.
- Suitable soluble fibers include maltodextrin, psyllium, pectin, guar gum, gum arabic, inulin, arabinoxylans, cellulose, and many other plant components such as resistant starch, resistant dextrins, lignin, pectins, beta-glucans, and oligosaccharides or a combination thereof.
- a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant soluble fiber.
- a digestion resistant soluble fiber can include starch linkages that remain undigested by enzymes of the human digestive tract.
- a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant maltodextrin.
- a digestion-resistant maltodextrin can be derived from maze. Suitable maltodextrins can include those that are soluble in water up to 70% at 20° C., have a viscosity of about 15 cps for a 30% solution at 30° C., a DE in the range of about 6-16, and contain random ⁇ -1,2, ⁇ -1,3, ⁇ -1,4, ⁇ -1,2, ⁇ -1,3 and ⁇ -1,4 glucose linkages in addition to the normal ⁇ -1,4 glucose linkages found in partially hydrolyzed starch. See, e.g., U.S. Pat.
- FIBERSOL®-2 is a maltodextrin of DE 6-10 processed from corn starch using hydrochloric acid and enzymes, which can be used as the soluble fiber in a tobacco tablet provided herein.
- FIBERSOL®-2 is partially indigestible because human digestive enzymes are incapable of digesting ⁇ 1,2, ⁇ 1,3 and ⁇ 1,6 glucose bonds. See, e.g., U.S. Pat. No. 6,203,842, which is hereby incorporated by reference.
- a digestion resistant soluble fiber includes starch linkages that cannot be hydrolyzed by enzymes of the human digestive tract.
- suitable soluble fibers include Pinefibre, Pinefibre C, Dexflow and Pineflow as discussed in U.S. Pat. No. 5,236,719, which is hereby incorporated by reference.
- Soluble fiber used in a dissolvable-chewable tobacco tablet provided herein can be GRAS by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent of soluble fiber, at least 25 weight percent of soluble fiber, at least 30 weight percent of soluble fiber, at least 35 weight percent of soluble fiber, at least 40 weight percent of soluble fiber, at least 45 weight percent of soluble fiber, at least 50 weight percent of soluble fiber, or at least 55 weight percent of soluble fiber.
- a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent maltodextrin, at least 25 weight percent maltodextrin, at least 30 weight percent maltodextrin, at least 35 weight percent maltodextrin, at least 40 weight percent maltodextrin, at least 45 weight percent maltodextrin, at least 50 weight percent maltodextrin, or at least 55 weight percent maltodextrin. In some cases, a dissolvable-chewable tobacco tablet provided herein can include less than 70 weight percent maltodextrin, less than 60 weight percent maltodextrin, less than 50 weight percent maltodextrin, or less than 40 weight percent maltodextrin.
- a dissolvable-chewable tobacco tablet can include at least 20 weight percent digestion-resistant maltodextrin, at least 25 weight percent digestion-resistant maltodextrin, at least 30 weight percent digestion-resistant maltodextrin, at least 35 weight percent digestion-resistant maltodextrin, at least 40 weight percent digestion-resistant maltodextrin, at least 45 weight percent digestion-resistant maltodextrin, at least 50 weight percent digestion-resistant maltodextrin, or at least 55 weight percent digestion-resistant maltodextrin.
- Sugar alcohols also known as polyols or polyhydric alcohols, are hydrogenated carbohydrates that can be used as sugar replacers.
- Sugar alcohols are non-cariogenic, low-glycemic, low-energy, low-insulinemic, low digestible, osmotic, carbohydrates that dissolve in water.
- Sugar alcohols can be used in comestible products to take advantage of these various properties. For example, sugar alcohols can be used to replace sugar because sugar alcohols contain fewer calories per gram than sugar and sugar alcohols do not cause tooth decay.
- a chewable digestible tobacco tablet described herein can include at least one sugar alcohol combined with soluble fiber to provide a solid solution that can hold tobacco (and other optional additive) to provide a satisfying tactile and/or flavor experience.
- Suitable sugar alcohol can be used in a solid solution provided herein.
- Suitable sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be monosaccharide-derived (e.g., sorbitol, mannitol, xylitol, erythritol), disaccharide-derived (e.g., isomalt, lactitol, maltitol), or polysaccharide-derived mixtures (e.g., maltitol syrup, hydrogenated starch hydrolysates [HSH]).
- Sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be sugar alcohols generally recognized as safe (“GRAS”) or approved food additives by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- GRAS sugar alcohols generally recognized as safe
- a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent of one or more sugar alcohols, at least 25 weight percent of one or more sugar alcohols, at least 30 weight percent of one or more sugar alcohols, at least 35 weight percent of one or more sugar alcohols, at least 40 weight percent of one or more sugar alcohols, at least 45 weight percent of one or more sugar alcohols, at least 50 weight percent of sugar alcohol, or at least 55 weight percent of one or more sugar alcohols.
- a dissolvable-chewable tobacco tablet provided herein can include less than 75 weight percent of one or more sugar alcohols, less than 60 weight percent of one or more sugar alcohols, or less than 50 weight percent of one or more sugar alcohols.
- a dissolvable-chewable tobacco tablet can include at least 2 weight percent sorbitol, at least weight percent sorbitol, at least 10 weight percent sorbitol, at least 15 weight percent sorbitol, at least 20 weight percent sorbitol, at least 25 weight percent sorbitol, at least 30 weight percent sorbitol, or at least 35 weight percent sorbitol.
- a dissolvable-chewable tobacco tablet can include at least 2 weight percent mannitol, at least 5 weight percent mannitol, at least 10 weight percent mannitol, at least 15 weight percent mannitol, at least 20 weight percent mannitol, at least 25 weight percent mannitol, at least 30 weight percent mannitol, or at least 35 weight percent mannitol.
- Tobacco plant tissue e.g., tobacco particles
- Tobacco plant tissue can be mixed with the solid solution during an extrusion process.
- Tobacco plant tissue can provide passages in the dissolvable-chewable tobacco tablet, which can permit certain tobacco constituents and/or additives within the dissolvable-chewable tobacco tablet to be released into an oral cavity when the dissolvable-chewable tobacco tablet is received in an oral cavity and/or chewed.
- Suitable tobaccos include fermented and unfermented tobaccos.
- the tobacco can be processed using other techniques.
- tobacco can be processed by heat treatment (e.g., cooking, toasting), flavoring, enzyme treatment, expansion and/or curing. Both fermented and non-fermented tobaccos can be processed using these techniques.
- the tobacco can be unprocessed tobacco.
- suitable processed tobaccos include dark air-cured, dark fire cured, burley, flue cured, and cigar filler or wrapper, as well as the products from the whole leaf stemming operation.
- the tobacco fibers includes up to 70% dark tobacco on a fresh weight basis.
- tobacco can be conditioned by heating, sweating, and/or pasteurizing steps as described in U.S. Publication Nos. 2004/0118422 or 2005/0178398, each of which is hereby incorporated by reference.
- Fermenting typically is characterized by high initial moisture content, heat generation, and a 10 to 20% loss of dry weight. See, e.g., U.S. Pat. Nos. 4,528,993; 4,660,577; 4,848,373; and 5,372,149; each of which is hereby incorporated by reference.
- fermentation can change either or both the color and texture of a leaf.
- Cured, or cured and fermented tobacco can be further processed (e.g., cut, expanded, blended, milled or comminuted) prior to incorporation into the oral tobacco product.
- the tobacco in some embodiments, is long cut fermented cured moist tobacco having an oven volatiles content of between 48 and 50 weight percent prior to mixing with the mouth-stable polymer and optionally flavorants and other additives.
- the tobacco can, in some embodiments, be prepared from plants having less than 20 ⁇ g of DVT per cm 2 of green leaf tissue.
- the tobacco fibers can be selected from the tobaccos described in U.S. Patent Publication No. 2008/0209586, which is hereby incorporated by reference.
- Tobacco compositions containing tobacco from such low-DVT varieties exhibits improved flavor characteristics in sensory panel evaluations when compared to tobacco or tobacco compositions that do not have reduced levels of DVTs.
- Green leaf tobacco can be cured using conventional means, e.g., flue-cured, barn-cured, fire-cured, air-cured or sun-cured. See, for example, Tso (1999, Chapter 1 in Tobacco, Production, Chemistry and Technology, Davis & Nielsen, eds., Blackwell Publishing, Oxford) for a description of different types of curing methods. Cured tobacco is usually aged in a wooden drum (i.e., a hogshead) or cardboard cartons in compressed conditions for several years (e.g., two to five years), at a moisture content ranging from 10% to about 25%. See, U.S. Pat. Nos. 4,516,590 and 5,372,149, each of which is hereby incorporated by reference.
- Cured and aged tobacco then can be further processed. Further processing includes conditioning the tobacco under vacuum with or without the introduction of steam at various temperatures, pasteurization, and fermentation. Fermentation typically is characterized by high initial moisture content, heat generation, and a 10 to 20% loss of dry weight. See, e.g., U.S. Pat. Nos. 4,528,993, 4,660,577, 4,848,373, 5,372,149; U.S. Publication No. 2005/0178398; and Tso (1999, Chapter 1 in Tobacco, Production, Chemistry and Technology, Davis & Nielsen, eds., Blackwell Publishing, Oxford), each of which is hereby incorporated by reference.
- Cured, aged, and fermented tobacco can be further processed (e.g., cut, shredded, expanded, or blended). See, for example, U.S. Pat. Nos. 4,528,993; 4,660,577; and 4,987,907; each of which is hereby incorporated by reference.
- Tobacco plant tissue can be processed to a desired size (e.g., a desired particle size).
- the tobacco fiber can be processed to have an average fiber size of less than 200 micrometers, less than 150 micrometers, less than 125 micrometers, less than 100 micrometers, less than 75 micrometers, less than 50 micrometers, less than 25 micrometers, less than 20 micrometers, or less than 10 micrometers.
- tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of at least 1 micrometer, at least 5 micrometers, at least 10 micrometers, at least 25 micrometers, at least 50 micrometers, at least 75 micrometers, at least 100 micrometers, at least 125 micrometers, or at least 150 micrometers.
- tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of between 25 and 125 micrometers.
- the tobacco fibers includes long cut tobacco, which can be cut or shredded into widths of about 10 cuts/inch up to about 110 cuts/inch and lengths of about 0.1 inches up to about 1 inch. Double cut tobacco fibers can have a range of particle sizes such that about 70% of the double cut tobacco fibers fall between the mesh sizes of 20 mesh and 80 mesh.
- Tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can have a total oven volatiles content of about 10% by weight or greater; about 20% by weight or greater; about 40% by weight or greater; about 15% by weight to about 25% by weight; about 20% by weight to about 30% by weight; about 30% by weight to about 50% by weight; about 45% by weight to about 65% by weight; or about 50% by weight to about 60% by weight.
- Those of skill in the art will appreciate that “moist” tobacco typically refers to tobacco that has an oven volatiles content of between about 40% by weight and about 60% by weight (e.g., about 45% by weight to about 55% by weight, or about 50% by weight).
- oven volatiles are determined by calculating the percentage of weight loss for a sample after drying the sample in a pre-warmed forced draft oven at 110° C. for 3.25 hours.
- the dissolvable-chewable tobacco tablet can have a different overall oven volatiles content than the oven volatiles content of the tobacco fibers used to make the oral tobacco product.
- the processing steps described herein can reduce or increase the oven volatiles content.
- a variety of additives can be included in a dissolvable-chewable tobacco tablet provided herein.
- the additives can include non-nicotine alkaloids, minerals, vitamins, dietary supplements, nutraceuticals, energizing agents, soothing agents, coloring agents, amino acids, chemesthetic agents, antioxidants, food grade emulsifiers, pH modifiers, botanicals (e.g., green tea), teeth whitening (e.g., SHMP), therapeutic agents, sweeteners, flavorants, and combinations thereof.
- a dissolvable-chewable tobacco tablet 110 provided herein can include one or more antioxidants.
- a dissolvable-chewable tobacco tablet provided herein can include 0.01 and 5.00 weight percent antioxidant, between 0.05 and 1.0 weight percent antioxidant, between 0.10 and 0.75 weigh percent antioxidant, or between 0.15 and 0.5 weight percent antioxidant.
- Suitable examples of antioxidants include ascorbyl palmitate (a vitamin C ester), BHT, ascorbic acid (Vitamin C), and sodium ascorbate (Vitamin C salt).
- monosterol citrate, tocopherols, propyl gallate, tertiary butylhydroquinone (TBHQ), butylated hydroxyanisole (BHA), Vitamin E, or a derivative thereof can be used as the antioxidant.
- TBHQ tertiary butylhydroquinone
- BHA butylated hydroxyanisole
- Vitamin E or a derivative thereof
- ascorbyl palmitate can be the antioxidant in the formulations listed in Table I.
- Antioxidants can be incorporated into the solid solution during a mixing process (e.g., added to an extruder mixing the ingredients).
- antioxidants may also reduce the formation of other tobacco derived impurities, such as Cotinine and myosime.
- Suitable natural sweeteners include sugars, for example, monosaccharides, disaccharides, and/or polysaccharide sugars, and/or mixtures of two or more sugars.
- the dissolvable-chewable tobacco tablet 110 includes one or more of the following: sucrose or table sugar; honey or a mixture of low molecular weight sugars not including sucrose; glucose or grape sugar or corn sugar or dextrose; molasses; corn sweetener; corn syrup or glucose syrup; fructose or fruit sugar; lactose or milk sugar; maltose or malt sugar or maltobiose; sorghum syrup; mannitol or manna sugar; sorbitol or d-sorbite or d-sobitol; fruit juice concentrate; and/or mixtures or blends of one or more of these ingredients.
- a dissolvable-chewable tobacco tablet provided herein can also include non-nutritive sweeteners. Suitable non-nutritive sweeteners include stevia, saccharin; aspartame; sucralose; or acesulfame potassium.
- the dissolvable-chewable tobacco tablet 110 can optionally include one or more flavorants.
- the flavorants can be natural or artificial.
- suitable flavorants include wintergreen, cherry and berry type flavorants, various liqueurs and liquors (such as Drambuie, bourbon, scotch, and whiskey), spearmint, peppermint, lavender, cinnamon, cardamon, apium graveolens, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, Japanese mint, cassia, caraway, cognac, jasmin, chamomile, menthol, ylang-ylang, sage, fennel, pimenta, ginger, anise, chai, coriander, coffee, liquorish, and mint oils from a species of the genus Mentha, and encapsulated flavors.
- Mint oils useful in particular, embodiments of the dissolvable-chewable tobacco tablet 110 include spearmint and peppermint. Synthetic flavorants can also be used. The particular combination of flavorants can be selected from flavorants that are GRAS in a particular country, such as the United States. Flavorants can also be included in the dissolvable-chewable tobacco tablet as encapsulated flavorants.
- the flavorants in the dissolvable-chewable tobacco tablet 110 are limited to less than 20 weight percent in sum. In some cases, the flavorants in the dissolvable-chewable tobacco tablet 110 are limited to be less than 10 weight percent in sum. For example, certain flavorants can be included in the dissolvable-chewable tobacco tablet 110 in amounts of about 1 weight percent to 5 weight percent.
- Dissolvable-chewable tobacco tablets may optionally include additives in addition to tobacco.
- these additives can further include non-tobacco alkaloids, dietary minerals, vitamins, dietary supplements, therapeutic agents, and fillers.
- Dissolvable-chewable tobacco tablets can also include vitamins, dietary minerals, other dietary supplements, and/or therapeutic agents.
- suitable vitamins include Vitamins A, B1, B2, B6, C, D2, D3, E, F, and K.
- a dissolvable-chewable tobacco tablet 110 can include C-vitamins with or without the presence of tobacco.
- Suitable dietary minerals include calcium (as carbonate, citrate, etc.) or magnesium (as oxide, etc.), chromium (usually as picolinate), and iron (as bis-glycinate).
- One or more dietary minerals could be included in a dissolvable-chewable tobacco tablet with or without the use of other additives.
- Other dietary supplements and/or therapeutic agents can also be included as additives.
- the dissolvable-chewable tobacco tablet provided herein can also include fillers such as starch, di-calcium phosphate, lactose, sorbitol, mannitol, and microcrystalline cellulose, calcium carbonate, dicalcium phosphate, calcium sulfate, clays, silica, sodium lauryl sulfate (SLS), glyceryl palmitostearate, sodium benzoate, sodium stearyl fumarate, talc, and stearates (e.g., Mg or K), and waxes (e.g., glycerol monostearate, propylene glycol monostearate, and acetylated monoglycerides), stabilizers (e.g., ascorbic acid and monosterol citrate, BHT, or BHA), disintegrating agents (e.g., starch, sodium starch glycolate, cross carmellose, cross linked PVP), pH stabilizers, or preservatives.
- fillers such as star
- an amount of filler in the dissolvable-chewable tobacco tablet 110 is limited to less than 10 weight percent in sum. In some cases, an amount of filler in the dissolvable-chewable tobacco tablet 110 is limited to be less than 5 weight percent in sum. In some cases, fillers can dissolve or disintegrate during use and thus result in a dissolvable-chewable tobacco tablet that becomes more pliable during use.
- Dissolvable-chewable tobacco tablets can also include one or more plasticizers.
- Plasticizers can soften the final dissolvable-chewable tobacco tablet and thus increase its flexibility. Suitable plasticizers include propylene glycol, triacetin, glycerin, vegetable oil, partially hydrogenated oil, triglycerides, triacetin, medium chain triglycerides, and combinations thereof.
- the plasticizer can include phthalates. Esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length can also be used as plasticizers.
- plasticizers can facilitate the extrusion processes described below.
- the dissolvable-chewable tobacco tablet 110 can include up to 20 weight percent plasticizer.
- a dissolvable-chewable tobacco tablet provided herein includes between 0.05 and 10 weight percent plasticizer, between 1 and 8 weight percent plasticizer, or between 2 and 4 weight percent plasticizer.
- a dissolvable-chewable tobacco tablet provided herein can include about 3 to 6.5 weight percent of propylene glycol.
- Dissolvable-chewable tobacco tablets can be produced by forming a molten mixture of soluble fiber, sugar alcohols (e.g., sorbitol and mannitol), and tobacco and shaping that molten mixture into individual dissolvable-chewable tobacco tablets.
- the molten mixture is formed under controlled heating conditions such that a solution of soluble fiber, sugar alcohol(s), water, and tobacco is formed without degrading the tobacco or creating cross-linking between the sugar alcohol(s) and/or the soluble fiber.
- a temperature of the molten mixture is maintained at a temperature below 150° C.
- a rod or sheet of the molten mixture is extruded and cut into individual dissolvable-chewable tobacco tablets.
- a molten mixture of soluble fiber, sugar alcohol(s), and tobacco can be injection molded, compression molded, or injection-compression molded Cooking processes forming dissolvable edible products sometimes utilize the cross-linking of sugars or sugar alcohols that occurs after heating to caramelization temperatures. Such heating results in a desirable caramelization of the product.
- the relatively high temperatures required for caramelization can accelerate the degradation of exhausted-tobacco because of the high temperatures and other factors (e.g., residence time during extrusion). Because tobacco degradation can be accelerated when exposed to elevated temperatures over extended periods of time, the temperature of a molten mixture provided herein can be maintained at a temperature of 150° C.
- a molten mixture provided herein is heated to a temperature of between 80° C. and 150° C. In some cases, a molten mixture provided herein is heated to a temperature of between 100° C. and 110° C. When cooled below its glass transition temperature, a molten mixture provided herein solidifies into an amorphous, non-porous, soluble fiber matrix containing tobacco.
- a solid solution of tobacco and sugar alcohol(s) can provide a dissolvable-chewable tobacco tablet provided herein with a suitable dissolution time when place in an adult consumer's mouth.
- a dissolvable-chewable tobacco tablet provided herein can also be chewable.
- a molten mixture can be mixed and heated in any suitable but controlled method.
- ingredients for a molten mixture can be combined in an extruder and mixed in a continuous extrusion process.
- dissolvable-chewable tobacco tablet provided herein can have attributes precisely controlled by extruder operation parameters, such as feed rate, barrel temperature profile, screw design, rpms, etc.
- Water added to molten mixture can be maintained at a percentage of less than 15 weight percent.
- a water content of a dissolvable-chewable tobacco tablet provided herein can be controlled in the extrusion process to ensure that the molten mixture becomes a solid solution.
- a molten mixture can have a water content of less than 15 weight percent.
- water content in a dissolvable-chewable tobacco tablet provided herein ranges from 0.5 weight percent to 7 weight percent.
- water content in a dissolvable-chewable tobacco tablet provided herein ranges from 1 weight percent to 5 weight percent.
- soluble fibers e.g., maltodextrin or digestion resistant maltodextrin
- sugar alcohol or blend of multiple sugar alcohols e.g., sorbitol and mannitol
- color e.g., TiO 2
- a mixing extruder 516 can include multiple stages controlled to be maintained at a predetermined temperature. As shown, extruder 516 can include stages having temperatures ranging between 80° C. and 150° C.
- an extruder can have seven stages with each stage controlled to a specific temperature (e.g., some stages range between 80° C. and 100° C., from 100° C. and 110° C., from 100° C. and 110° C., from 100° C. and 130° C., from 100° C. and 130° C., from 80° C. and 120° C.).
- a mixture of sweetener and water can also be introduced 506 into the process 500 and can undergo a solution mixing step 508 for a period of time before progressing to the extruder 516 .
- any combination of tobacco, flavor, propylene glycol, and antioxidants can also be introduced 510 into the process 500 and can undergo a solution mixing step 512 for a period of time before progressing to the extruder 516 .
- this process allows tobacco to be incorporated into the process with minimum exposure to temperature and air.
- a plasticizer e.g., partially hydrogenated vegetable oil
- the extruder 516 can maintain a warm internal temperature (e.g., between approximately 80° C. to 150° C.).
- the low temperature of the extruder 516 has the advantage of reducing undesirable degradation of additives (e.g., tobacco) and cross-linking of the sugar alcohol(s).
- the molten mixture can exit the extruder 516 and be allowed to cool (e.g., to ambient temperature) to form a viscous material including a solid solution of tobacco fiber, sugar alcohol(s), and other additives which is then cut in a portioning process 520 to form individual dissolvable-chewable tobacco tablets.
- Portioning process 520 can include a process of rounding the edges of the dissolvable-chewable tobacco tablets.
- a pelletizer can be used to round the edges.
- the dissolvable-chewable tobacco tablets can undergo a coating process 522 and a packaging process 524 , each of which is discussed above.
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Abstract
A tobacco tablet that includes a solid solution of soluble fiber and one or more sugar alcohols, the solid solution having a glass transition temperature of less than 40° C., and tobacco dispersed in the solid solution such that the tobacco is released from the tablet when the tablet is chewed or dissolved within an oral cavity.
Description
- This application is a divisional of U.S. application Ser. No. 14/505,834, filed Oct. 3, 2014, which claims the benefit of priority under 35 U.S.C. § 119(e) to U.S. Application No. 61/886,325 filed Oct. 3, 2013, the entire contents of which are incorporated herein by reference in their entirety.
- This document relates to dissolvable-chewable tobacco tablets and methods for making dissolvable-chewable tobacco tablets. For example, dissolvable-chewable tobacco tablets can include tobacco plant tissue within a solid solution of soluble fiber and one or more sugar alcohols.
- Tobacco can be enjoyed by adult tobacco consumers in a variety of forms. Smoking tobacco is combusted and the aerosol either tasted or inhaled (e.g., in a cigarette, cigar, or pipe). Smokeless tobacco products are not combusted and include: chewing tobacco, moist smokeless tobacco, snus, and dry snuff. Chewing tobacco is coarsely divided tobacco leaf that is typically packaged in a large pouch-like package and used in a plug or twist. Moist smokeless tobacco is a moist, more finely-divided tobacco that is provided in loose form or in pouch form and is typically packaged in round cans and used as a pinch or in a pouch placed between an adult tobacco consumer's cheek and gum. Snus is a heat treated smokeless tobacco. Dry snuff is finely-ground tobacco that is placed in the mouth or used nasally.
- A dissolvable-chewable tobacco tablet provided herein provides a satisfying tactile and/or flavor experience. A dissolvable-chewable tobacco tablet provided herein is at least partially receivable in an oral cavity of an adult tobacco consumer. In some cases, a dissolvable-chewable tobacco tablet provided herein is wholly receivable in an oral cavity. A dissolvable-chewable tobacco tablet provided herein can include a solid solution of soluble fiber and one or more sugar alcohols with tobacco plant tissue dispersed therein. In some cases, a dissolvable-chewable tobacco tablet provided herein includes at least 20 weight percent of soluble fiber. In some cases, soluble fiber in a dissolvable-chewable tobacco tablet provided herein can include digestion-resistant maltodextrin. In some cases, a dissolvable-chewable tobacco tablet provided herein includes at least 20 weight percent of one or more sugar alcohols. A dissolvable-chewable tobacco tablet provided herein can be adapted to release the tobacco plant tissue therefrom when received within the oral cavity of an adult tobacco consumer and/or chewed by an adult tobacco consumer.
- A dissolvable-chewable tobacco tablet provided herein can, in some cases, include between 1 and 40 weight percent tobacco plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 5 and 35 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 10 and 30 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 15 and 25 weight percent plant tissue. In some cases, the tobacco used in the dissolvable-chewable tobacco tablet includes between 1 and 10 weight percent plant tissue. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of less than 200 micrometers, less than 150 micrometers, less than 125 micrometers, less than 100 micrometers, less than 75 micrometers, less than 50 micrometers, less than 25 micrometers, less than 20 micrometers, or less than 10 micrometers. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of at least 1 micrometer, at least 5 micrometers, at least 10 micrometers, at least 25 micrometers, at least 50 micrometers, at least 75 micrometers, at least 100 micrometers, at least 125 micrometers, or at least 150 micrometers. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of between 25 and 125 micrometers.
- A solid solution of soluble fiber and one or more sugar alcohols provided herein can have a glass transition temperature selected to provide a stable product at ambient temperatures, but that is chewable at body temperature. For example, by using the relatively high soluble fiber content, the glass transition temperature of a dissolvable-chewable tobacco tablet provided herein can be selected such that it is relatively close to ambient temperature, which can permit an adult tobacco consumer to experience an enjoyable tactile experience (e.g., mouth feel). A dissolvable-chewable tobacco tablet provided herein can include a single and continuous phase of the solid solution and dispersed particles of tobacco plant tissue. At ambient temperatures, the solid solution can be amorphous and glassy.
- A method of making dissolvable-chewable tobacco tablets provided herein includes forming a molten mixture of at least 20 weight percent soluble fiber, at least 20 weight percent of one or more sugar alcohols, tobacco, and less than 15 weight percent water while maintaining a mixture temperature of less than 150° C. and portioning the molten mixture into a plurality of dissolvable-chewable tobacco tablets. In some cases, the ingredients can be mixed to form the molten mixture in an extruder and individual dissolvable-chewable tobacco tablets formed from the molten mixture as it leaves the extruder. Plasticizers, such as oil, can be added to the molten mixture (e.g., in an extruder). In some cases, oil is added to increase the chewiness of a dissolvable-chewable tobacco tablet provided herein. In some cases, oil can be added to a molten mixture to cool the molten mixture to a temperature such that the molten mixture becomes a solid solution having some shape stability.
- Unlike a traditional cooking process where sugars or sugar alcohols are heated to a temperature such that caramelization and other cross-linking occurs, methods provided herein include a controlled mixing and heating of soluble fiber and sugar alcohols to form a molten mixture and dispersing tobacco (and optionally other ingredients) in the solid solution without creating significant crosslinking of the sugar alcohols. Because tobacco plant tissue can degrade when exposed to temperatures in excess of 150° C., a temperature of a molten mixture provided herein can be maintained at a temperature of 150° C. or below. In some cases, a molten mixture provided herein is heated to a maximum temperature of between 80° C. and 150° C. In some cases, a molten mixture provided herein is heated to a temperature of between 100° C. and 110° C. When cooled ambient temperatures, a molten mixture provided herein solidifies into an amorphous, non-porous, glassy, body consisting of a single and continuous phase of the solid solution and dispersed additives (e.g., oil, tobacco fibers). Because the soluble fibers and sugar alcohols do not become cross-linked, they can remain soluble and thus dissolve when placed in an adult tobacco consumer's mouth.
- In some cases, a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant soluble fiber. In some cases, a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant maltodextrin derived from maze. For example, FIBERSOL®-2 is a digestion-resistant corn-derived maltodextrin soluble fiber, which can be used as the soluble fiber in a dissolvable-chewable tobacco tablet provided herein. Other starch sources such as potato, rice, wheat, barley, peas, beans, lentils, oats, or tapioca can be processed to form digestion-resistant soluble fiber. A digestion-resistant soluble fiber can include starch linkages that remain undigested by enzymes of the human digestive tract. Soluble fiber used in a dissolvable-chewable tobacco tablet provided herein can be a soluble fiber generally recognized as safe (“GRAS”) by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- In some cases, a dissolvable-chewable tobacco tablet provided herein can include one or more sugar alcohols selected from the following group mannitol, sorbitol, xylitol, erythritol, isomalt, lactitol, maltitol, maltitol syrup, and hydrogenated starch hydrolysates [HSH]. In some cases, a dissolvable-chewable tobacco tablet provided herein can include two or more sugar alcohols. In some cases, a dissolvable-chewable tobacco tablet provided herein can include mannitol and sorbitol. Sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be generally recognized as safe (“GRAS”) by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- A dissolvable-chewable tobacco tablet provided herein can, in some cases, include up to 15 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 0.5 weight percent and 7 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 1 weight percent and 5 weight percent water. In some cases, a dissolvable-chewable tobacco tablet provided herein can include between 2 weight percent and 4 weight percent water.
- A dissolvable-chewable tobacco tablet provided herein can include a sweetener dispersed therein. Suitable sweeteners include saccharine, sucralose, aspartame, acesulfame potassium, and combinations thereof. In some cases, a dissolvable-chewable tobacco tablet provided herein can be substantially free of sugars. For example, a dissolvable-chewable tobacco tablet can be substantially free of sugars, but include one or more sugar alcohols and non-nutritive sweeteners. In some cases, a dissolvable-chewable tobacco tablet provided herein can include non-caramelized sugars in a percentage of no more than 25 weight percent.
- A dissolvable-chewable tobacco tablet provided herein can include flavorants. The flavorants can be natural or artificial. Flavorants can be selected from the following: licorice, wintergreen, cherry and berry type flavorants, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cinnamon, cardamon, apium graveolens, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, Japanese mint, cassia, caraway, cognac, jasmin, chamomile, menthol, ylang-ylang, sage, fennel, pimenta, ginger, anise, chai, coriander, coffee, mint oils from a species of the genus Mentha, cocoa, and combinations thereof. Synthetic flavorants can also be used. The particular combination of flavorants can be selected from flavorants that are GRAS in a particular country, such as the United States. Flavorants can also be included in the dissolvable-chewable tobacco tablet as encapsulated flavorants.
- A dissolvable-chewable tobacco tablet provided herein can include a plasticizer dispersed in the solid solution. For example, the plasticizer can be propylene glycol, triacetin, glycerin, vegetable oil, triglycerides, or a combination thereof. Plasticizers can be added as processing aids and/or to make a dissolvable-chewable tobacco tablet chewier. In some cases, oil can be added to a molten mixture including sugar alcohol(s), soluble fibers, and tobacco to cool the molten mixture. In some cases, a dissolvable-chewable tobacco tablet provided herein can include oil dispersed within a matrix of a solid solution provided herein.
- A body of a dissolvable-chewable tobacco tablet provided herein can have a variety of different shapes, some of which include disk, shield, heart, rectangle, and square. In some cases, a body of a dissolvable-chewable tobacco tablet provided herein can have rounded corners. In some cases, the body of the dissolvable-chewable tobacco tablet can be spherical. According to certain embodiments, the body can have a length or width of between 1 mm and 25 mm and a thickness of between 1 mm and 25 mm. In some cases, the body can have a length or width of between 5 mm and 15 mm and a thickness of between 2 mm and 5 mm. In some cases, a dissolvable-chewable tobacco tablet provided herein can include a colorant. For example, a body of a dissolvable-chewable tobacco tablet provided herein can include titanium dioxide, which can provide the body with a white color. In some cases, a coating on the body can include a colorant.
- A method of forming dissolvable-chewable tobacco tablets can include forming a molten mixture of at least 20 weight percent soluble fiber, at least 20 weight percent of one or more sugar alcohols, tobacco plant tissue (e.g., tobacco particles), and less than 15 weight percent water, while maintaining a mixture temperature of less than 150° C. In some cases, the molten mixture includes at less than 13 weight percent, less than 10 weight percent, less than 8 weight percent, less than 7 weight percent, less than 6 weight percent, or less than 5 weight percent water. In some cases, the molten mixture includes at least 0.5 weight percent, at least 1 weight percent, at least 2 weight percent, or at least 3 weight percent water. In addition to tobacco, water, sugar alcohol(s) and soluble fiber (e.g., maltodextrin), a molten mixture provided herein can include one or more additives selected from colorants, sweeteners, flavorants, plasticizers, antioxidants, processing aids, and combinations thereof. In some cases, the molten mixture is substantially sugars.
- In some cases, the molten mixture provided herein is formed in an extruder. The extruder can be a multi-staged extruder having different sections that are heated to different temperatures and/or have different ingredients introduced. In some cases, an extruder provided herein can include multiple stages and can be used in a method provided herein in a process where the maximum temperature in any stage is no more than 150° C. (e.g., no more than 120° C., no more than 110° C., or no more than 105° C.). Portioning the molten mixture provided herein can be accomplished using any suitable method. A method provided herein can further include cooling dissolvable-chewable tobacco tablets and packaging dissolvable-chewable tobacco tablets.
- The details of one or more embodiments of the subject matter described in this specification are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages of the subject matter will become apparent from the description, the drawings, and the claims.
-
FIG. 1 is a perspective view of a dissolvable-chewable tobacco tablet provided herein. -
FIGS. 1A-1O illustrates various additional exemplary shapes of dissolvable-chewable tobacco tablets provided herein. -
FIG. 2 depicts differential scanning calorimetry data for sorbitol provided herein. -
FIG. 3 depicts differential scanning calorimetry data for maltodextrin provided herein. -
FIG. 4 depicts differential scanning calorimetry data for mannitol provided herein. -
FIG. 5 is a process diagram for making dissolvable-chewable tobacco tablets according to a method provided herein. - The dissolvable-chewable tobacco tablets described herein include a solid solution of soluble fiber and one or more sugar alcohols. Tobacco plant tissue (and optionally additional additives) can be dispersed in the solid solution such that the tobacco flavor, tobacco particles, and/or various additives are released from the dissolvable-chewable tobacco tablet when the dissolvable-chewable tobacco tablet is chewed and/or dissolved within an adult tobacco consumer's oral cavity. The dissolvable-chewable tobacco tablets described herein can provide a favorable additive release profile and tactile experience. In some cases, a dissolvable-chewable tobacco tablet provided herein includes unbound tobacco in the solid solution. As used herein, the term “tobacco plant tissue” refers to processed or non-processed cellulosic parts (e.g., leaves, stems) of a member of the genus Nicotiana, but does not include extracts of tobacco (e.g., tobacco-derived nicotine).
- Unlike traditional cooking processes, which typically solidify the ingredients by heating the ingredients to a temperature such that sugars and/or sugar alcohols caramelize, dissolvable-chewable tobacco tablets provided herein can be made by forming a solid solution of soluble fiber and one or more sugar alcohols in a controlled heating and mixing process maintained at a temperature of 150° C. or below. The solid solutions described herein exhibit a glass transition temperature (Tg) in the range of −75° C. to 40° C. Because tobacco degradation can be accelerated when exposed to elevated temperatures over extended periods of time, the temperature of a molten mixture provided herein can be maintained at a temperature of 150° C. or below over a residence time of five to ten minutes or less during the mixing (for example, if an extrusion process is utilized). In some cases, an extruder can be used for this controlled heating and mixing process. A desired texture of the chewable dissolvable tablet can be determined by the selection and weight percentages of the soluble fiber and sugar alcohol(s) and the mixing process conditions. In some cases, a dissolvable-chewable tobacco tablet provided herein can include maltodextrin as the soluble fiber. In some cases, a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent maltodextrin. In some cases, the soluble fiber can be digestion resistant soluble fiber (e.g., digestion resistant maltodextrin such as FIBERSOL®-2). By changing the ratio of soluble fiber to sugar alcohols, the T g of the mixture can be altered and therefore the desired final texture of the product. In some cases, plasticizers can be incorporated into a dissolvable-chewable tobacco tablet provided herein to make it more chewable.
- In addition to tobacco, one or more additional additives can be included in a dissolvable-chewable tobacco tablet provided herein and adapted to be released from the dissolvable-chewable tobacco tablet when the dissolvable-chewable tobacco tablet is placed in an oral cavity and chewed by an adult tobacco consumer.
- A dissolvable-chewable tobacco tablet provided herein can take up to 4 hours, up to 3 hours, up to 2 hours, or up to 1 hour to dissolve when placed in an adult tobacco consumer's mouth. Chewing can increase the rate of dissolution. In some cases, a dissolvable-chewable tobacco tablet provided herein can take less than 1 minute or up to 30 minutes to dissolve when placed in an adult tobacco consumer's mouth. In some cases, a dissolvable-chewable tobacco tablet provided herein can take between 2 minutes and 15 minutes to dissolve when placed in an adult tobacco consumer's mouth.
- In addition to tobacco, sweeteners, and flavorants, a dissolvable-chewable tobacco tablet provided herein can also include fillers, plasticizers, and/or processing aids. Fillers can also be included in the solid solution to alter the texture or pliability of the dissolvable-chewable tobacco tablet. The solid solution can also include plasticizers, which can increase the softness and/or chewability of the dissolvable-chewable tobacco tablet. Processing aids can also be present in the dissolvable-chewable tobacco tablet and be used to facilitate shaping processes.
-
FIG. 1 depicts an example of a dissolvable-chewable tobacco tablet 110. The dissolvable-chewable tobacco tablet 110 has a shield shape. For example, the dissolvable-chewable tobacco tablet 110 can have a length of about 16 mm, a width of about 14 mm and a thickness of about 9 mm. - Referring now to
FIGS. 1A-1N , the dissolvable-chewable tobacco tablet 110 can be molded into any desired shape. For example, referring toFIGS. 1A-1L , dissolvable-chewable tobacco tablets 110A-L can be formed in shapes that promote improved positioning in the oral cavity, improved packaging characteristics, or both. In some circumstances, the dissolvable-chewable tobacco tablet 110A-L can be configured to be: (A) an elliptical-shaped dissolvable-chewable tobacco tablet 110A; (B) an elongated elliptical-shaped dissolvable-chewable tobacco tablet 110B; (C) a semi-circular dissolvable-chewable tobacco tablet 110C; (D) a square or rectangular-shaped dissolvable-chewable tobacco tablet 110D; (E) a football-shaped dissolvable-chewable tobacco tablet 110E; (F) an elongated rectangular-shaped dissolvable-chewable tobacco tablet 110F; (G) a boomerang-shaped dissolvable-chewable tobacco tablet 110G; (H) a rounded-edge rectangular-shaped dissolvable-chewable tobacco tablet 110H; (I) a teardrop- or comma-shaped dissolvable-chewable tobacco tablet 110I; (J) a bowtie-shaped dissolvable-chewable tobacco tablet 110J; (K) a peanut-shaped dissolvable-chewable tobacco tablet 110K; or (L) a shield-shaped dissolvable-chewable tobacco tablet. Alternatively, the dissolvable-chewable tobacco tablet can have different thicknesses or dimensionality, such that a beveled article (e.g., a wedge) is produced (see, for example,product 110M depicted inFIG. 1M ) or a hemi-spherical shape is produced. In some cases, the dissolvable-chewable tobacco tablet has a shield shape. - In addition or in the alternative to flavorants being included within the soluble fiber matrix, flavorants can be included on an exterior of the dissolvable-
chewable tobacco tablet 110. For example, referring toFIG. 1N some embodiments of a dissolvable-chewable tobacco tablet 110N can be equipped with flavor strips 116. - Referring to
FIG. 1O , particular embodiments of the dissolvable-chewable tobacco tablet 110 can be embossed or stamped with a design (e.g., a logo, an image, or the like). For example, the dissolvable-chewable tobacco tablet 110O can be embossed or stamped with any type ofdesign 117 including, but not limited to, a trademark, a product name, or any type of image. Thedesign 117 can be formed directly into the dissolvable-chewable tobacco tablet, arranged along the exterior of the product 110O. Thedesign 117 can also be embossed or stamped into those embodiments with adissolvable film 116 applied thereto. In some cases, the dissolvable-chewable tobacco tablet 110 can be wrapped or coated in an edible or dissolvable film, which may be opaque, substantially transparent, or translucent. The dissolvable film can readily dissipate when the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity. In some cases, the dissolvable-chewable tobacco tablet 110 can be coated with a mouth-soluble material. Exemplary coating materials include Carnuba wax, Beeswax, gelatin, acetylated monoglyceride, starch (e.g., native potato starch, high amylose starch, and hydroxypropylated potato starch), Zein, Shellac, ethyl cellulose, methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, and combinations thereof. Additives, such as miglycol, titanium dioxide, kaoline, bentonite, can be incorporated into the coating material to improve oxygen or moisture barrier and mechanical properties for the coating or film. For example, a coating can include a combination of gelatin, methylcellulose, or gelatin and hydroxymethylcellulose. In some cases, the coating can contain sugar alcohols such as sorbitol, mannitol, xylitol, erythritol), disaccharide-derived (e.g., isomalt, lactitol, maltitol), or polysaccharide-derived mixtures (e.g., maltitol syrup, hydrogenated starch hydrolysates [HSH]) or combinations thereof. In some cases a coating material can contain sugar alcohols and hydroxymethylcellulose, gelatin, wax, with additives. In some cases, a coating material can include a plasticizer. In some cases, a coating can include a colorant, a flavorant, and/or a one or more of the additives discussed above. In some cases, the solid solution can form a body that can have surfaces roughened to improve the adherence of a coating. In some cases, a coating can provide a glossy or semi-glossy appearance, a smooth surface, and/or an appealing visual aesthetic (e.g., a nice color). In some cases, the coating (e.g., a Beeswax, Carnuba wax, Zein, acetylated monoglyceride, and/or hydroxypropylated potato starch coating) can provide a soft mouth feel. In some cases, the coating (e.g., a methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, ethyl cellulose, and/or gelatin coating) can provide a hard outer coating. - One or more dissolvable-
chewable tobacco tablets 110 can be packaged in a variety of conventional and non-conventional manners. For example, a plurality of dissolvable-chewable tobacco tablets 110 can be packaged in a container having a lid. In some cases, a plurality of dissolvable-chewable tobacco tablets 110 can be stacked and packaged in a paper, plastic, and/or aluminum foil tube. The packaging can have a child-resistant lid. - Dissolvable-Chewable tobacco Tablet Properties
- The dissolvable-
chewable tobacco tablet 110 can provide a favorable tactile experience (e.g., mouth feel). While the dissolvable-chewable tobacco tablet 110 can retain its shape during processing, shipping, handling, the dissolvable-chewable tobacco tablet 110 includes a solid solution that dissolves or disintegrates when the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity, exposed to saliva, and/or chewed. Prior to dissolution or disintegration, the dissolvable-chewable tobacco tablet 110 in an oral cavity undergoes a phase transition from a glassy state to a rubbery state then finally into to a viscous state. To further promote a favorable tactile experience (e.g., mouth feel), in some cases, dissolvable-chewable tobacco tablet 110 can be formulated to exhibit a smooth texture. Working of the dissolvable-chewable tobacco tablet 110 within the oral cavity can accelerate the release of the tobacco within the solid solution. - During use, the environment surrounding the dissolvable-
chewable tobacco tablet 110 transitions from room temperature (e.g., −25° C.) to body temperature (e.g., ˜37° C.). One way of characterizing the properties of the dissolvable-chewable tobacco tablet 110 is by determining the phase transition points of the dissolvable-chewable tobacco tablet using differential scanning calorimetry (DSC). The dissolvable-chewable tobacco tablet 110 is composed of various ingredients, therefore, the thermal transitions of the dissolvable-chewable tobacco tablet can differ not only due to the individual properties of each ingredient, but also due to the ratios of those ingredients. For example, the thermal transitions of a dissolvable-chewable tobacco tablet with approximately 30-40 weight percent of maltodextrin, a mixture of mannitol and sorbitol approximately 30-40 weight percent, and water content from 0.5 weight percent to 7 weight percent. In some cases, a glass transition temperature (Tg) 202 of the dissolvable-chewable tobacco tablet 110 can be from −65° C. to 60° C. (e.g., −50° C. to 40° C., −40° C. to 30° C., −30° C. to 20° C., −20° C. to 10° C., and −10° C. to 0° C.). The approximate T g of this formulation can be from −20 to 10° C. Thus, at room temperature the dissolvable-chewable tobacco tablet 110 is at the end of the transition from a glassy state to a rubbery/viscous state. Once the dissolvable-chewable tobacco tablet 110 is placed in an oral cavity at body temperature, the dissolvable-chewable tobacco tablet 110 can complete the phase transition to a rubbery/viscous state. In particular embodiments, the dissolvable-chewable tobacco tablet 110 is coated to facilitate bulk packaging. - In some cases, the melting transition point (Tm) of the oil dispersed in the dissolvable-
chewable tobacco tablet 110 is 28° C. (82.4° F.). As the dissolvable-chewable tobacco tablet 110 is exposed to body temperature that exceeds the Tm of the oil, the oil undergoes a phase transition to a liquid state. This transition can provide a favorable tactile experience (e.g., mouth feel) to the user as it causes the dissolvable-chewable tobacco tablet to soften. Referring toFIG. 2 , the DSC for pure mannitol with a melting temperature at 166° C. is shown. The mannitol peak at 166° C. can be absent in the DSC of the solid mixture.FIG. 3 shows the DSC for pure maltodextrin as a reference sample. The mixture of mannitol, sorbitol and maltodextrin can be amorphous. Therefore the product does not have “crumbly” texture in the chewable product. The multiple phases in the dissolvable-chewable tobacco tablet are visible through x-ray microtomography. A soluble fiber, sugar alcohol, and tobacco mixture appears as a dense matrix domain, while the oil is partitioned in the oil domains. - The dissolvable-
chewable tobacco tablet 110 can have a variety of colors. In some cases, the dissolvable-chewable tobacco tablet 110 has an off-white color. For example, Titanium dioxide (TiO2) can be added to the soluble fiber and sugar alcohol mixture. In a scanning electron microscope image, the dark voids dispersed throughout the dense matrix can indicate pockets of oil, flavor. In some cases, natural and artificial coloring can be added to a molten mixture that forms the solid solution during a molding process to form dissolvable-chewable tobacco tablets 110 having a predetermined color. Encapsulated flavors can be added during the extrusion process to create speckles, patterns, or dots within a dissolvable-chewable tobacco tablet. - Soluble fiber dissolves in ambient water. Insoluble fiber does not dissolve in ambient water. Soluble fibers can attract water and form a gel. Not only are many soluble fibers safe for consumption, but some soluble fibers are used as a dietary supplement. As a dietary supplement, soluble fiber can slow down digestion and delay the emptying of a stomach. Instead of using soluble fiber as a mere additive, however, dissolvable-chewable tobacco tablets provided herein include a solid solution of soluble fiber and sugar alcohols that can be combined with tobacco (and optionally other additives) to provide a satisfying tactile and/or flavor experience.
- Any suitable soluble fiber or combination of soluble fibers can be used to form a soluble-fiber solution provided herein. Suitable soluble fibers include maltodextrin, psyllium, pectin, guar gum, gum arabic, inulin, arabinoxylans, cellulose, and many other plant components such as resistant starch, resistant dextrins, lignin, pectins, beta-glucans, and oligosaccharides or a combination thereof. In some cases, a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant soluble fiber. A digestion resistant soluble fiber can include starch linkages that remain undigested by enzymes of the human digestive tract. In some cases, a dissolvable-chewable tobacco tablet provided herein can include a digestion-resistant maltodextrin. In some cases, a digestion-resistant maltodextrin can be derived from maze. Suitable maltodextrins can include those that are soluble in water up to 70% at 20° C., have a viscosity of about 15 cps for a 30% solution at 30° C., a DE in the range of about 6-16, and contain random α-1,2, α-1,3, α-1,4, β-1,2, β-1,3 and β-1,4 glucose linkages in addition to the normal α-1,4 glucose linkages found in partially hydrolyzed starch. See, e.g., U.S. Pat. Nos. 5,410,035; 5,380,717, which are hereby incorporated by reference. For example, FIBERSOL®-2 is a maltodextrin of DE 6-10 processed from corn starch using hydrochloric acid and enzymes, which can be used as the soluble fiber in a tobacco tablet provided herein. FIBERSOL®-2 is partially indigestible because human digestive enzymes are incapable of digesting β1,2, β1,3 and β1,6 glucose bonds. See, e.g., U.S. Pat. No. 6,203,842, which is hereby incorporated by reference. Other starch sources such as potato, rice, wheat, barley, peas, beans, lentils, oats, or tapioca can be processed to form digestion-resistant soluble fiber. A digestion resistant soluble fiber includes starch linkages that cannot be hydrolyzed by enzymes of the human digestive tract. In some cases, suitable soluble fibers include Pinefibre, Pinefibre C, Dexflow and Pineflow as discussed in U.S. Pat. No. 5,236,719, which is hereby incorporated by reference. Soluble fiber used in a dissolvable-chewable tobacco tablet provided herein can be GRAS by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- A dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent of soluble fiber, at least 25 weight percent of soluble fiber, at least 30 weight percent of soluble fiber, at least 35 weight percent of soluble fiber, at least 40 weight percent of soluble fiber, at least 45 weight percent of soluble fiber, at least 50 weight percent of soluble fiber, or at least 55 weight percent of soluble fiber. In some cases, a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent maltodextrin, at least 25 weight percent maltodextrin, at least 30 weight percent maltodextrin, at least 35 weight percent maltodextrin, at least 40 weight percent maltodextrin, at least 45 weight percent maltodextrin, at least 50 weight percent maltodextrin, or at least 55 weight percent maltodextrin. In some cases, a dissolvable-chewable tobacco tablet provided herein can include less than 70 weight percent maltodextrin, less than 60 weight percent maltodextrin, less than 50 weight percent maltodextrin, or less than 40 weight percent maltodextrin. In some cases, a dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent digestion-resistant maltodextrin, at least 25 weight percent digestion-resistant maltodextrin, at least 30 weight percent digestion-resistant maltodextrin, at least 35 weight percent digestion-resistant maltodextrin, at least 40 weight percent digestion-resistant maltodextrin, at least 45 weight percent digestion-resistant maltodextrin, at least 50 weight percent digestion-resistant maltodextrin, or at least 55 weight percent digestion-resistant maltodextrin.
- Sugar alcohols, also known as polyols or polyhydric alcohols, are hydrogenated carbohydrates that can be used as sugar replacers. Sugar alcohols are non-cariogenic, low-glycemic, low-energy, low-insulinemic, low digestible, osmotic, carbohydrates that dissolve in water. Sugar alcohols can be used in comestible products to take advantage of these various properties. For example, sugar alcohols can be used to replace sugar because sugar alcohols contain fewer calories per gram than sugar and sugar alcohols do not cause tooth decay. A chewable digestible tobacco tablet described herein can include at least one sugar alcohol combined with soluble fiber to provide a solid solution that can hold tobacco (and other optional additive) to provide a satisfying tactile and/or flavor experience.
- Any suitable sugar alcohol can be used in a solid solution provided herein. Suitable sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be monosaccharide-derived (e.g., sorbitol, mannitol, xylitol, erythritol), disaccharide-derived (e.g., isomalt, lactitol, maltitol), or polysaccharide-derived mixtures (e.g., maltitol syrup, hydrogenated starch hydrolysates [HSH]). Sugar alcohols used in a dissolvable-chewable tobacco tablet provided herein can be sugar alcohols generally recognized as safe (“GRAS”) or approved food additives by the Food and Drug Administration or another appropriate private, state, or national regulatory agency.
- A dissolvable-chewable tobacco tablet provided herein can include at least 20 weight percent of one or more sugar alcohols, at least 25 weight percent of one or more sugar alcohols, at least 30 weight percent of one or more sugar alcohols, at least 35 weight percent of one or more sugar alcohols, at least 40 weight percent of one or more sugar alcohols, at least 45 weight percent of one or more sugar alcohols, at least 50 weight percent of sugar alcohol, or at least 55 weight percent of one or more sugar alcohols. In some cases, a dissolvable-chewable tobacco tablet provided herein can include less than 75 weight percent of one or more sugar alcohols, less than 60 weight percent of one or more sugar alcohols, or less than 50 weight percent of one or more sugar alcohols. In some cases, a dissolvable-chewable tobacco tablet provided herein can include at least 2 weight percent sorbitol, at least weight percent sorbitol, at least 10 weight percent sorbitol, at least 15 weight percent sorbitol, at least 20 weight percent sorbitol, at least 25 weight percent sorbitol, at least 30 weight percent sorbitol, or at least 35 weight percent sorbitol. In some cases, a dissolvable-chewable tobacco tablet provided herein can include at least 2 weight percent mannitol, at least 5 weight percent mannitol, at least 10 weight percent mannitol, at least 15 weight percent mannitol, at least 20 weight percent mannitol, at least 25 weight percent mannitol, at least 30 weight percent mannitol, or at least 35 weight percent mannitol.
- Tobacco plant tissue (e.g., tobacco particles) can be mixed with the solid solution during an extrusion process. Tobacco plant tissue can provide passages in the dissolvable-chewable tobacco tablet, which can permit certain tobacco constituents and/or additives within the dissolvable-chewable tobacco tablet to be released into an oral cavity when the dissolvable-chewable tobacco tablet is received in an oral cavity and/or chewed.
- Suitable tobaccos include fermented and unfermented tobaccos. In addition to fermentation, the tobacco can be processed using other techniques. For example, tobacco can be processed by heat treatment (e.g., cooking, toasting), flavoring, enzyme treatment, expansion and/or curing. Both fermented and non-fermented tobaccos can be processed using these techniques. In other embodiments, the tobacco can be unprocessed tobacco. Specific examples of suitable processed tobaccos include dark air-cured, dark fire cured, burley, flue cured, and cigar filler or wrapper, as well as the products from the whole leaf stemming operation. In some embodiments, the tobacco fibers includes up to 70% dark tobacco on a fresh weight basis. For example, tobacco can be conditioned by heating, sweating, and/or pasteurizing steps as described in U.S. Publication Nos. 2004/0118422 or 2005/0178398, each of which is hereby incorporated by reference. Fermenting typically is characterized by high initial moisture content, heat generation, and a 10 to 20% loss of dry weight. See, e.g., U.S. Pat. Nos. 4,528,993; 4,660,577; 4,848,373; and 5,372,149; each of which is hereby incorporated by reference. In addition to modifying the aroma of the leaf, fermentation can change either or both the color and texture of a leaf. Also during the fermentation process, evolution gases can be produced, oxygen can be taken up, the pH can change, and the amount of water retained can change. See, for example, U.S. Publication No. 2005/0178398 and Tso (1999,
Chapter 1 in Tobacco, Production, Chemistry and Technology, Davis & Nielsen, eds., Blackwell Publishing, Oxford), each of which is hereby incorporated by reference. Cured, or cured and fermented tobacco can be further processed (e.g., cut, expanded, blended, milled or comminuted) prior to incorporation into the oral tobacco product. The tobacco, in some embodiments, is long cut fermented cured moist tobacco having an oven volatiles content of between 48 and 50 weight percent prior to mixing with the mouth-stable polymer and optionally flavorants and other additives. - The tobacco can, in some embodiments, be prepared from plants having less than 20 μg of DVT per cm2 of green leaf tissue. For example, the tobacco fibers can be selected from the tobaccos described in U.S. Patent Publication No. 2008/0209586, which is hereby incorporated by reference. Tobacco compositions containing tobacco from such low-DVT varieties exhibits improved flavor characteristics in sensory panel evaluations when compared to tobacco or tobacco compositions that do not have reduced levels of DVTs.
- Green leaf tobacco can be cured using conventional means, e.g., flue-cured, barn-cured, fire-cured, air-cured or sun-cured. See, for example, Tso (1999,
Chapter 1 in Tobacco, Production, Chemistry and Technology, Davis & Nielsen, eds., Blackwell Publishing, Oxford) for a description of different types of curing methods. Cured tobacco is usually aged in a wooden drum (i.e., a hogshead) or cardboard cartons in compressed conditions for several years (e.g., two to five years), at a moisture content ranging from 10% to about 25%. See, U.S. Pat. Nos. 4,516,590 and 5,372,149, each of which is hereby incorporated by reference. Cured and aged tobacco then can be further processed. Further processing includes conditioning the tobacco under vacuum with or without the introduction of steam at various temperatures, pasteurization, and fermentation. Fermentation typically is characterized by high initial moisture content, heat generation, and a 10 to 20% loss of dry weight. See, e.g., U.S. Pat. Nos. 4,528,993, 4,660,577, 4,848,373, 5,372,149; U.S. Publication No. 2005/0178398; and Tso (1999,Chapter 1 in Tobacco, Production, Chemistry and Technology, Davis & Nielsen, eds., Blackwell Publishing, Oxford), each of which is hereby incorporated by reference. Cured, aged, and fermented tobacco can be further processed (e.g., cut, shredded, expanded, or blended). See, for example, U.S. Pat. Nos. 4,528,993; 4,660,577; and 4,987,907; each of which is hereby incorporated by reference. - Tobacco plant tissue can be processed to a desired size (e.g., a desired particle size). In some cases, the tobacco fiber can be processed to have an average fiber size of less than 200 micrometers, less than 150 micrometers, less than 125 micrometers, less than 100 micrometers, less than 75 micrometers, less than 50 micrometers, less than 25 micrometers, less than 20 micrometers, or less than 10 micrometers. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of at least 1 micrometer, at least 5 micrometers, at least 10 micrometers, at least 25 micrometers, at least 50 micrometers, at least 75 micrometers, at least 100 micrometers, at least 125 micrometers, or at least 150 micrometers. In some cases, tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can be processed to have an average particle size of between 25 and 125 micrometers. In some embodiments, the tobacco fibers includes long cut tobacco, which can be cut or shredded into widths of about 10 cuts/inch up to about 110 cuts/inch and lengths of about 0.1 inches up to about 1 inch. Double cut tobacco fibers can have a range of particle sizes such that about 70% of the double cut tobacco fibers fall between the mesh sizes of 20 mesh and 80 mesh.
- Tobacco plant tissue used in a dissolvable-chewable tobacco tablet provided herein can have a total oven volatiles content of about 10% by weight or greater; about 20% by weight or greater; about 40% by weight or greater; about 15% by weight to about 25% by weight; about 20% by weight to about 30% by weight; about 30% by weight to about 50% by weight; about 45% by weight to about 65% by weight; or about 50% by weight to about 60% by weight. Those of skill in the art will appreciate that “moist” tobacco typically refers to tobacco that has an oven volatiles content of between about 40% by weight and about 60% by weight (e.g., about 45% by weight to about 55% by weight, or about 50% by weight). As used herein, “oven volatiles” are determined by calculating the percentage of weight loss for a sample after drying the sample in a pre-warmed forced draft oven at 110° C. for 3.25 hours. The dissolvable-chewable tobacco tablet can have a different overall oven volatiles content than the oven volatiles content of the tobacco fibers used to make the oral tobacco product. The processing steps described herein can reduce or increase the oven volatiles content.
- A variety of additives can be included in a dissolvable-chewable tobacco tablet provided herein. The additives can include non-nicotine alkaloids, minerals, vitamins, dietary supplements, nutraceuticals, energizing agents, soothing agents, coloring agents, amino acids, chemesthetic agents, antioxidants, food grade emulsifiers, pH modifiers, botanicals (e.g., green tea), teeth whitening (e.g., SHMP), therapeutic agents, sweeteners, flavorants, and combinations thereof.
- A dissolvable-
chewable tobacco tablet 110 provided herein can include one or more antioxidants. In some cases, a dissolvable-chewable tobacco tablet provided herein can include 0.01 and 5.00 weight percent antioxidant, between 0.05 and 1.0 weight percent antioxidant, between 0.10 and 0.75 weigh percent antioxidant, or between 0.15 and 0.5 weight percent antioxidant. Suitable examples of antioxidants include ascorbyl palmitate (a vitamin C ester), BHT, ascorbic acid (Vitamin C), and sodium ascorbate (Vitamin C salt). In some cases, monosterol citrate, tocopherols, propyl gallate, tertiary butylhydroquinone (TBHQ), butylated hydroxyanisole (BHA), Vitamin E, or a derivative thereof can be used as the antioxidant. For example, ascorbyl palmitate can be the antioxidant in the formulations listed in Table I. Antioxidants can be incorporated into the solid solution during a mixing process (e.g., added to an extruder mixing the ingredients). - The presence of antioxidants may also reduce the formation of other tobacco derived impurities, such as Cotinine and myosime.
- A variety of synthetic and/or natural sweeteners can be used as additives in the dissolvable-
chewable tobacco tablet 110. Suitable natural sweeteners include sugars, for example, monosaccharides, disaccharides, and/or polysaccharide sugars, and/or mixtures of two or more sugars. According to some embodiments, the dissolvable-chewable tobacco tablet 110 includes one or more of the following: sucrose or table sugar; honey or a mixture of low molecular weight sugars not including sucrose; glucose or grape sugar or corn sugar or dextrose; molasses; corn sweetener; corn syrup or glucose syrup; fructose or fruit sugar; lactose or milk sugar; maltose or malt sugar or maltobiose; sorghum syrup; mannitol or manna sugar; sorbitol or d-sorbite or d-sobitol; fruit juice concentrate; and/or mixtures or blends of one or more of these ingredients. A dissolvable-chewable tobacco tablet provided herein can also include non-nutritive sweeteners. Suitable non-nutritive sweeteners include stevia, saccharin; aspartame; sucralose; or acesulfame potassium. - The dissolvable-
chewable tobacco tablet 110 can optionally include one or more flavorants. The flavorants can be natural or artificial. For example, suitable flavorants include wintergreen, cherry and berry type flavorants, various liqueurs and liquors (such as Drambuie, bourbon, scotch, and whiskey), spearmint, peppermint, lavender, cinnamon, cardamon, apium graveolens, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, Japanese mint, cassia, caraway, cognac, jasmin, chamomile, menthol, ylang-ylang, sage, fennel, pimenta, ginger, anise, chai, coriander, coffee, liquorish, and mint oils from a species of the genus Mentha, and encapsulated flavors. Mint oils useful in particular, embodiments of the dissolvable-chewable tobacco tablet 110 include spearmint and peppermint. Synthetic flavorants can also be used. The particular combination of flavorants can be selected from flavorants that are GRAS in a particular country, such as the United States. Flavorants can also be included in the dissolvable-chewable tobacco tablet as encapsulated flavorants. - In some cases, the flavorants in the dissolvable-
chewable tobacco tablet 110 are limited to less than 20 weight percent in sum. In some cases, the flavorants in the dissolvable-chewable tobacco tablet 110 are limited to be less than 10 weight percent in sum. For example, certain flavorants can be included in the dissolvable-chewable tobacco tablet 110 in amounts of about 1 weight percent to 5 weight percent. - Dissolvable-chewable tobacco tablets provided herein may optionally include additives in addition to tobacco. For example, these additives can further include non-tobacco alkaloids, dietary minerals, vitamins, dietary supplements, therapeutic agents, and fillers.
- Dissolvable-chewable tobacco tablets provided herein can also include vitamins, dietary minerals, other dietary supplements, and/or therapeutic agents. For example, suitable vitamins include Vitamins A, B1, B2, B6, C, D2, D3, E, F, and K. For example, a dissolvable-
chewable tobacco tablet 110 can include C-vitamins with or without the presence of tobacco. Suitable dietary minerals include calcium (as carbonate, citrate, etc.) or magnesium (as oxide, etc.), chromium (usually as picolinate), and iron (as bis-glycinate). One or more dietary minerals could be included in a dissolvable-chewable tobacco tablet with or without the use of other additives. Other dietary supplements and/or therapeutic agents can also be included as additives. - The dissolvable-chewable tobacco tablet provided herein can also include fillers such as starch, di-calcium phosphate, lactose, sorbitol, mannitol, and microcrystalline cellulose, calcium carbonate, dicalcium phosphate, calcium sulfate, clays, silica, sodium lauryl sulfate (SLS), glyceryl palmitostearate, sodium benzoate, sodium stearyl fumarate, talc, and stearates (e.g., Mg or K), and waxes (e.g., glycerol monostearate, propylene glycol monostearate, and acetylated monoglycerides), stabilizers (e.g., ascorbic acid and monosterol citrate, BHT, or BHA), disintegrating agents (e.g., starch, sodium starch glycolate, cross carmellose, cross linked PVP), pH stabilizers, or preservatives. In some cases, an amount of filler in the dissolvable-
chewable tobacco tablet 110 is limited to less than 10 weight percent in sum. In some cases, an amount of filler in the dissolvable-chewable tobacco tablet 110 is limited to be less than 5 weight percent in sum. In some cases, fillers can dissolve or disintegrate during use and thus result in a dissolvable-chewable tobacco tablet that becomes more pliable during use. - Dissolvable-chewable tobacco tablets provided herein can also include one or more plasticizers. Plasticizers can soften the final dissolvable-chewable tobacco tablet and thus increase its flexibility. Suitable plasticizers include propylene glycol, triacetin, glycerin, vegetable oil, partially hydrogenated oil, triglycerides, triacetin, medium chain triglycerides, and combinations thereof. In some cases, the plasticizer can include phthalates. Esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length can also be used as plasticizers. Moreover, plasticizers can facilitate the extrusion processes described below. In some cases, the dissolvable-
chewable tobacco tablet 110 can include up to 20 weight percent plasticizer. In some cases, a dissolvable-chewable tobacco tablet provided herein includes between 0.05 and 10 weight percent plasticizer, between 1 and 8 weight percent plasticizer, or between 2 and 4 weight percent plasticizer. For example, a dissolvable-chewable tobacco tablet provided herein can include about 3 to 6.5 weight percent of propylene glycol. - Dissolvable-chewable tobacco tablets provided herein can be produced by forming a molten mixture of soluble fiber, sugar alcohols (e.g., sorbitol and mannitol), and tobacco and shaping that molten mixture into individual dissolvable-chewable tobacco tablets. The molten mixture is formed under controlled heating conditions such that a solution of soluble fiber, sugar alcohol(s), water, and tobacco is formed without degrading the tobacco or creating cross-linking between the sugar alcohol(s) and/or the soluble fiber. In some cases, a temperature of the molten mixture is maintained at a temperature below 150° C. In some cases, a rod or sheet of the molten mixture is extruded and cut into individual dissolvable-chewable tobacco tablets. In some cases, a molten mixture of soluble fiber, sugar alcohol(s), and tobacco can be injection molded, compression molded, or injection-compression molded Cooking processes forming dissolvable edible products sometimes utilize the cross-linking of sugars or sugar alcohols that occurs after heating to caramelization temperatures. Such heating results in a desirable caramelization of the product. The relatively high temperatures required for caramelization, however, can accelerate the degradation of exhausted-tobacco because of the high temperatures and other factors (e.g., residence time during extrusion). Because tobacco degradation can be accelerated when exposed to elevated temperatures over extended periods of time, the temperature of a molten mixture provided herein can be maintained at a temperature of 150° C. or below over a processing time (e.g., a residence time of five to ten minutes or less if an extrusion process is utilized). In some cases, a molten mixture provided herein is heated to a temperature of between 80° C. and 150° C. In some cases, a molten mixture provided herein is heated to a temperature of between 100° C. and 110° C. When cooled below its glass transition temperature, a molten mixture provided herein solidifies into an amorphous, non-porous, soluble fiber matrix containing tobacco. A solid solution of tobacco and sugar alcohol(s), however, can provide a dissolvable-chewable tobacco tablet provided herein with a suitable dissolution time when place in an adult consumer's mouth. A dissolvable-chewable tobacco tablet provided herein can also be chewable.
- A molten mixture can be mixed and heated in any suitable but controlled method. In some cases, such as shown in
FIG. 5 , ingredients for a molten mixture can be combined in an extruder and mixed in a continuous extrusion process. Unlike a traditional cooking method, dissolvable-chewable tobacco tablet provided herein can have attributes precisely controlled by extruder operation parameters, such as feed rate, barrel temperature profile, screw design, rpms, etc. - Water added to molten mixture can be maintained at a percentage of less than 15 weight percent. A water content of a dissolvable-chewable tobacco tablet provided herein can be controlled in the extrusion process to ensure that the molten mixture becomes a solid solution. In some cases, a molten mixture can have a water content of less than 15 weight percent. In some cases, water content in a dissolvable-chewable tobacco tablet provided herein ranges from 0.5 weight percent to 7 weight percent. In some cases, water content in a dissolvable-chewable tobacco tablet provided herein ranges from 1 weight percent to 5 weight percent.
- Referring to the
extrusion process 500 illustrated inFIG. 5 , soluble fibers (e.g., maltodextrin or digestion resistant maltodextrin), sugar alcohol or blend of multiple sugar alcohols (e.g., sorbitol and mannitol), and color (e.g., TiO2) 502 can be introduced into theextrusion process 500 and can undergo a powder mixing 504 for a period of time before progressing to theextruder 516. A mixingextruder 516 can include multiple stages controlled to be maintained at a predetermined temperature. As shown,extruder 516 can include stages having temperatures ranging between 80° C. and 150° C. For example, an extruder can have seven stages with each stage controlled to a specific temperature (e.g., some stages range between 80° C. and 100° C., from 100° C. and 110° C., from 100° C. and 110° C., from 100° C. and 130° C., from 100° C. and 130° C., from 100° C. and 130° C., from 80° C. and 120° C.). A mixture of sweetener and water can also be introduced 506 into theprocess 500 and can undergo asolution mixing step 508 for a period of time before progressing to theextruder 516. Any combination of tobacco, flavor, propylene glycol, and antioxidants can also be introduced 510 into theprocess 500 and can undergo asolution mixing step 512 for a period of time before progressing to theextruder 516. In some cases, this process allows tobacco to be incorporated into the process with minimum exposure to temperature and air. A plasticizer (e.g., partially hydrogenated vegetable oil) can also undergo asolution mixing step 514 for a period of time before progressing into theextruder 516. Theextruder 516 can maintain a warm internal temperature (e.g., between approximately 80° C. to 150° C.). The low temperature of theextruder 516 has the advantage of reducing undesirable degradation of additives (e.g., tobacco) and cross-linking of the sugar alcohol(s). The molten mixture can exit theextruder 516 and be allowed to cool (e.g., to ambient temperature) to form a viscous material including a solid solution of tobacco fiber, sugar alcohol(s), and other additives which is then cut in aportioning process 520 to form individual dissolvable-chewable tobacco tablets.Portioning process 520 can include a process of rounding the edges of the dissolvable-chewable tobacco tablets. For example, a pelletizer can be used to round the edges. After portioning, the dissolvable-chewable tobacco tablets can undergo acoating process 522 and apackaging process 524, each of which is discussed above. - In addition to extrusion, there are other methods for mixing and carefully controlling the temperature of a molten mixture used to form dissolvable-chewable tobacco tablets provided herein.
- It is to be understood that, while the invention has been described herein in conjunction with a number of different aspects, the foregoing description of the various aspects is intended to illustrate and not limit the scope of the invention, which is defined by the scope of the appended claims. Other aspects, advantages, and modifications are within the scope of the following claims.
- Disclosed are methods and compositions that can be used for, can be used in conjunction with, can be used in preparation for, or are products of the disclosed methods and compositions. These and other materials are disclosed herein, and it is understood that combinations, subsets, interactions, groups, etc. of these methods and compositions are disclosed. That is, while specific reference to each various individual and collective combinations and permutations of these compositions and methods may not be explicitly disclosed, each is specifically contemplated and described herein. For example, if a particular composition of matter or a particular method is disclosed and discussed and a number of compositions or methods are discussed, each and every combination and permutation of the compositions and the methods are specifically contemplated unless specifically indicated to the contrary. Likewise, any subset or combination of these is also specifically contemplated and disclosed.
Claims (21)
1. A method of forming a dissolvable-chewable tobacco tablet:
forming a molten mixture by combining a soluble fiber, a sugar alcohol, tobacco or a tobacco derivative, and water at a mixture temperature of less than 150° C., the molten mixture including at least 20 weight percent of the soluble fiber, at least 20 weight percent of the sugar alcohol, and less than 15 weight percent of the water.
2. The method of claim 1 , wherein the forming of a molten mixture includes disposing the soluble fiber, the sugar alcohol, the tobacco or the tobacco derivative, and the water an extruder.
3. The method of claim 1 , wherein the method further comprises:
contacting a plasticizer to the molten mixture.
4. The method of claim 1 , wherein the method further comprises:
dividing the molten mixture to form a plurality of individual tablets, each tablet of the plurality of individual tables sized to be at least partially received in an oral cavity of an adult tobacco consumer.
5. The method of claim 4 , wherein the method further comprises:
at least partially coating one or more of the plurality of individual tablets, the coating including Carnuba wax, Beeswax, gelatin, acetylated monoglyceride, native potato starch, high amylose starch, hydroxypropylated potato starch, Zein, Shellac, ethyl cellulose, methylcellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, miglycol, titanium dioxide, kaoline, bentonite, or any combination thereof.
6. The method of claim 1 , wherein the soluble fiber is present in the molten mixture in an amount ranging from 20 weight percent to 70 weight percent.
7. The method of claim 1 , wherein the soluble fiber includes maltodextrin, psyllium, pectin, guar gum, gum arabic, inulin, arabinoxylans, cellulose, resistant starch, resistant dextrins, lignin, pectins, beta-glucans, and oligosaccharides, or any combination thereof.
8. The method of claim 1 , wherein the sugar alcohol is present in the molten mixture in an amount ranging from 20 weight percent to 75 weight percent.
9. The method of claim 1 , wherein the sugar alcohol includes sorbitol, mannitol, xylitol, erythritol, isomalt, lactitol, maltitol, maltitol syrup, hydrogenated starch hydrolysates, or any combination thereof.
10. The method of claim 1 , wherein the tobacco or the tobacco derivative is present in the molten mixture in an amount ranging from 1 weight percent to 4 weight percent.
11. The method of claim 1 , wherein the tobacco or the tobacco derivative has an average fiber size less than about 200 micrometers.
12. The method of claim 1 , wherein the tobacco or the tobacco derivative has an average particles size ranging from 25 micrometers to 125 micrometers.
13. The method of claim 1 , wherein the water is present in the molten mixture in an amount ranging from 0.5 weight percent to 15 weight percent.
14. The method of claim 4 , wherein the method further comprises:
cooling the molten mixture to form a cooled mixture, the cool mixture including a matrix defined by the soluble fiber and the sugar alcohol.
15. The method of claim 14 , wherein the molten mixture is cooled to ambient temperature.
16. The method of claim 14 , wherein the mixture further comprises:
portioning the cooled mixture into the plurality of individual tablets.
17. The method of claim 1 , wherein the mixture temperature ranges from 80° C. to 150° C.
18. The method of claim 1 , wherein the mixture temperature ranges from 100° C. to 110° C.
19. The method of claim 3 , wherein the plasticizer includes propylene glycol, triacetin, glycerin, vegetable oil, triglycerides, or any combination thereof.
20. The method of claim 4 , wherein the method further comprises:
at least partially coating one or more of the plurality of individual tablets, the coating including sorbitol, mannitol, xylitol, erythritol, isomalt, lactitol, maltitol, maltitol syrup, hydrogenated starch hydrolysates, or any combination thereof.
21. The method of claim 4 , wherein the dividing includes rounding edges of at least a portion of the plurality of individual tablets.
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US20160157515A1 (en) | 2014-12-05 | 2016-06-09 | R.J. Reynolds Tobacco Company | Smokeless tobacco pouch |
CN107637858B (en) * | 2017-09-14 | 2020-11-10 | 云南中烟工业有限责任公司 | Plant aroma-causing substance extracted by improved water extraction and alcohol precipitation method, and extraction method and application thereof |
US11083765B2 (en) * | 2017-12-15 | 2021-08-10 | Andrew Scott Davis | Hemp leaf chew composition and method for producing |
US11793230B2 (en) | 2019-12-09 | 2023-10-24 | Nicoventures Trading Limited | Oral products with improved binding of active ingredients |
US11969502B2 (en) | 2019-12-09 | 2024-04-30 | Nicoventures Trading Limited | Oral products |
US11617744B2 (en) | 2019-12-09 | 2023-04-04 | Nico Ventures Trading Limited | Moist oral compositions |
US11889856B2 (en) | 2019-12-09 | 2024-02-06 | Nicoventures Trading Limited | Oral foam composition |
CA3160750A1 (en) | 2019-12-09 | 2021-06-17 | Anthony Richard Gerardi | Oral product comprising a cannabinoid |
US11883527B2 (en) | 2019-12-09 | 2024-01-30 | Nicoventures Trading Limited | Oral composition and method of manufacture |
US11826462B2 (en) | 2019-12-09 | 2023-11-28 | Nicoventures Trading Limited | Oral product with sustained flavor release |
US11872231B2 (en) | 2019-12-09 | 2024-01-16 | Nicoventures Trading Limited | Moist oral product comprising an active ingredient |
US11672862B2 (en) | 2019-12-09 | 2023-06-13 | Nicoventures Trading Limited | Oral products with reduced irritation |
US11712059B2 (en) | 2020-02-24 | 2023-08-01 | Nicoventures Trading Limited | Beaded tobacco material and related method of manufacture |
US11839602B2 (en) | 2020-11-25 | 2023-12-12 | Nicoventures Trading Limited | Oral cannabinoid product with lipid component |
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US8336557B2 (en) * | 2007-11-28 | 2012-12-25 | Philip Morris Usa Inc. | Smokeless compressed tobacco product for oral consumption |
US9155772B2 (en) * | 2008-12-08 | 2015-10-13 | Philip Morris Usa Inc. | Soft, chewable and orally dissolvable and/or disintegrable products |
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US9687023B2 (en) * | 2009-10-09 | 2017-06-27 | Philip Morris Usa Inc. | Moist smokeless tobacco product for oral usage having on a portion of the outer surface at least one friction reducing strip that provides texture during use |
US20110139164A1 (en) * | 2009-12-15 | 2011-06-16 | R. J. Reynolds Tobacco Company | Tobacco Product And Method For Manufacture |
US20110220130A1 (en) * | 2009-12-15 | 2011-09-15 | John-Paul Mua | Tobacco Product And Method For Manufacture |
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US9854831B2 (en) * | 2012-01-20 | 2018-01-02 | Altria Client Services Llc | Oral product |
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