WO2019049207A1

WO2019049207A1 - Tobacco material

Info

Publication number: WO2019049207A1
Application number: PCT/JP2017/031947
Authority: WO
Inventors: 亮祐長瀬; 敬一塙
Original assignee: 日本たばこ産業株式会社
Priority date: 2017-09-05
Filing date: 2017-09-05
Publication date: 2019-03-14
Also published as: EP3662765B1; CA3074591C; EP3662765A4; JP6945635B2; RU2745863C1; JPWO2019049207A1; KR102425798B1; US20200196657A1; CA3074591A1; EP3662765A1; CN111050572A; KR20200044925A

Abstract

Provided is a tobacco material comprising: an aqueous dispersion medium; and tobacco particles dispersed in the dispersion medium and having an average particle size of 30 μm or less, said tobacco material having a hemicellulose content of 0.8 wt% or less based on bone-dry tobacco particles. The tobacco material is characterized by having a low viscosity.

Description

Cigarette material

The present invention relates to tobacco materials and tobacco products comprising the same.

In smoking articles, it is practiced to adjust the flavor and taste to develop smoking articles corresponding to various tastes. As a method of adjusting flavor and taste, for example, Patent Document 1 discloses a method of dispersing leaf tobacco particles in a dispersion medium and adding a dispersion to cut tobacco. In addition, Patent Document 2 discloses a method of heating a suspension of tobacco particles to improve flavor by utilizing a Maillard reaction or the like (Patent Document 2, paragraph 0013). The tobacco particles are less than 40 mesh (Patent Document 2, paragraph 0024), ie, less than 400 μm. On the other hand, the suspension of tobacco particles is also known as a raw material for a reconstituted tobacco sheet, and Patent Document 3 discloses a tobacco particle suspension of 60 to 400 mesh at 80 to 180 ° F. (26.7 to 82. Heating to 2 ° C. is disclosed (Patent Document 3, paragraph 0056). The particle size of the tobacco particles is 38 to 250 μm.

International Publication No. 2014/185103 Japanese Patent Application Laid-Open No. 10-66559 Japanese Patent Laid-Open No. 6-46817

The method of Patent Document 1 is a useful technique in that it can impart flavor evenly to tobacco cutting and the like. However, in the stage of mixing tobacco raw material and solvent such as water to prepare a tobacco raw material dispersion, viscosity of the dispersion increases due to interaction between water-soluble component derived from tobacco raw material and water, etc. Found out that there are issues such as difficulty with In view of the above, it is an object of the present invention to provide a low viscosity tobacco material in which tobacco particles are dispersed in an aqueous dispersion medium. There is no suggestion in Patent Document 1 regarding viscosity increase, and Patent Documents 2 and 3 do not even disclose such particles. Therefore, the said subject is a subject peculiar to using the microparticles | fine-particles which are 30 micrometers or less in average particle diameter, Comprising: It is a novel subject discovered by inventors.

The inventors of the present invention have solved the above problems by setting the amount of hemicellulose to a certain amount or less in a tobacco material containing an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium. That is, the said subject is solved by the following this invention.
(1) A tobacco material comprising an aqueous dispersion medium and tobacco particles having an average particle size of 30 μm or less dispersed in the dispersion medium,
A tobacco material, wherein the hemicellulose content in the tobacco material is 0.8 wt% or less based on bone dry tobacco particles.
(2) The tobacco material as described in (1) whose pH is 4.8 or less.
(3) The tobacco material according to (1) or (2), wherein the aqueous dispersion medium contains an aqueous organic compound.
(4) The tobacco material according to (3), wherein the aqueous organic compound is selected from the group consisting of monohydric alcohols, polyhydric alcohols, sugar alcohols, saccharides, polyhydric alcohol esters, and combinations thereof.
(5) The tobacco material according to any one of (1) to (4), wherein the content of water in the aqueous dispersion medium is more than 50% by weight in the aqueous dispersion medium.
(6) The tobacco material according to any one of (1) to (5), wherein the content of the tobacco particles is 1 to 40% by weight.
(7) The tobacco material according to any one of (1) to (6), wherein the tobacco particles are particles derived from tobacco raw material, fermented tobacco raw material, or heat-treated tobacco raw material.
(8) The tobacco material according to (7), wherein the cultivar of the tobacco material is yellow species, burley species, native species, or orient leaves.
(9) preparing a dispersion containing an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium, and heating the dispersion to 160 ° C. or higher,
A method for producing a tobacco material according to any one of (1) to (8).
(10) The method according to (9), wherein the heating is performed under pressure.
(11) A tobacco product comprising the tobacco material according to any one of the above (1) to (8).
(12) The tobacco product according to (11), further comprising a base material, and containing 0.01 to 5% by weight of the tobacco particles relative to the base material.
(13) A method of producing a tobacco product according to (12), which comprises the step of adding the tobacco material according to any one of (1) to (8) to the base material.

The present invention can provide a low viscosity tobacco material in which tobacco particles are dispersed in an aqueous dispersion medium.

Diagram showing the viscosity of tobacco material Diagram showing the viscosity of tobacco material Diagram showing the viscosity of tobacco material Figure showing the results of storage test Diagram showing the pH of tobacco material

Hereinafter, the present invention will be described in detail. In the present invention, “X to Y” includes X and Y which are final values.

1. Tobacco Material The tobacco material of the present invention comprises an aqueous dispersion medium and tobacco particles having an average particle size of 30 μm or less dispersed in the dispersion medium.

(1) Tobacco Particles The tobacco particles may be derived from tobacco raw materials, fermented tobacco raw materials, or heat-treated tobacco raw materials. A tobacco raw material is the whole tobacco or the site | part of tobacco, and a leaf, vein, stalk, a root, a flower, and these mixtures can be used as a site | part. The type of tobacco is not particularly limited, and examples thereof include yellow species, burley species, native species, and orient leaves. The state of the tobacco material to be used may be a fresh leaf which has not been subjected to drying immediately after harvest, etc., or it may be dried after harvest, or these may be used in combination. In addition, it is also possible to use tobacco, expanded tobacco and sheet tobacco obtained by processing these tobacco raw materials. These may be used alone, or two or more types of varieties or portions may be used in combination.

The tobacco particles can be prepared by any method, but it is preferable to subject the tobacco raw material to a usual drying treatment and then to coarsely grind it with a usual coarse crusher and then to finely grind it. Drying treatment and coarse grinding may be performed as known, and the average particle size of the coarsely crushed tobacco particles is preferably in the range of several hundred μm to several mm. The method of pulverization is also not limited, and any method of wet pulverization or dry pulverization may be used. The wet pulverization can be carried out by adding a liquid dispersion medium to coarsely pulverized tobacco particles and mixing them, and treating the mixture with a wet pulverizer (for example, MIC-2: manufactured by Nara Machinery Co., Ltd.). The rotation speed of the pulverizer is preferably 1100 to 1300 rpm, and the pulverizing time is preferably about 5 to 100 minutes. The dry pulverization can be carried out by treating the roughly pulverized tobacco particles with a dry pulverizer such as a jet mill.

The average particle size of the tobacco particles thus obtained is 30 μm or less, preferably 20 μm or less. By having such an average particle diameter, clogging of the nozzle is less likely to occur when spray-spraying the dispersion, and the tobacco particles are easily dispersed uniformly in the tobacco material, and the aroma taste is imparted to the smoking article. It can be done without unevenness. In one embodiment, the lower limit of the average particle diameter of the tobacco particles is 5 μm or more, and in another embodiment 8 μm or more. The average particle size of the tobacco particles can be adjusted under the pulverizing conditions, and for example, the average particle size can be increased by shortening the pulverizing time, lowering the viscosity of the dispersion medium, or the like.

The average particle size in the present invention is determined by laser diffraction scattering method. Specifically, the average particle diameter in the present invention is measured with a refractive index of 1.60 to 0.101 using a laser diffraction particle size distribution measuring apparatus (for example, Shimadzu nanoparticle size distribution measuring apparatus SALD-2100). Ru.

(2) Aqueous Dispersion Medium The aqueous dispersion medium is a liquid medium containing water. The aqueous dispersion medium may be water alone or may contain a specific organic compound. The organic compound is preferably water soluble, and the aqueous organic compound is preferably selected from the group consisting of monohydric alcohols, polyhydric alcohols, sugar alcohols, saccharides, polyhydric alcohol esters, and combinations thereof. . When the organic compound is insoluble in water, it can be dissolved in the aqueous dispersion medium by using it together with an amphiphilic organic compound such as methanol.

Examples of the monohydric alcohol include methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-1-propanol, 2,2-dimethylethanol, cyclohexanol and the like monovalent C1- Examples thereof include C6 aliphatic alcohols, monohydric alcohols having an aromatic substituent such as benzyl alcohol, monohydric alcohols containing one or more halogen elements, and monohydric alcohols having one or more ether bonds.

Polyhydric alcohol is a generic term for compounds having two or more hydroxyl groups in one molecule, and includes, but is not limited to, glycerin and propylene glycol.
Examples of sugar alcohols include sorbitol, maltitol, xylitol, erythritol, lactitol, sorbitan, xylose, arabinose, mannose, trehalose and the like.
Examples of sugars include lactose, sugar, coupling sugar, glucose, enzyme starch syrup, acid saccharified starch syrup, maltose starch syrup, malt sugar, isomerized sugar, fructose, reduced maltose, reduced starch starch syrup, honey and the like.
Examples of polyhydric alcohol esters include fatty acid polyhydric alcohol esters such as fatty acid triglyceride.

The aqueous dispersion medium can be used as a medium when wet-grinding tobacco. In this case, the tobacco material of the present invention can be prepared together with pulverization. At this time, it is preferable to use a mixed solvent of water and glycerin because the average particle size of the tobacco particles can be easily adjusted to a desired range. When tobacco particles are obtained by dry pulverization, the tobacco material of the present invention can be prepared by mixing the pulverized tobacco particles with an aqueous medium.

The mixing ratio of water and the organic compound is not limited. In particular, when using a mixed solvent of water and glysenrin, the mixing ratio may be arbitrary. However, from the viewpoint of workability and safety, the content of water in the aqueous dispersion medium is preferably more than 50% by weight, more preferably 80% by weight or more, and still more preferably 90% by weight or more. .

(3) Hemicellulose Hemicellulose is a polysaccharide contained in plant cell walls. The tobacco material of the present invention comprises no more than 0.8% by weight of hemicellulose, based on bone dry tobacco particles. Hemicellulose is likely to interact with water, thereby increasing the viscosity of the tobacco material. However, in the present invention, since the amount of hemicellulose is reduced, the viscosity is low and it is easy to spray on a substrate such as tobacco cut. From this point of view, the amount of hemicellulose is preferably 0.5% by weight or less based on bone-dried tobacco particles. Although the lower limit of the amount of hemicellulose is not limited, it is preferably 0% by weight, or preferably 0.1% by weight or more.

Although the concentration of cellulose in the tobacco material of the present invention is not limited, it is preferably 12% by weight or less, more preferably 10.5% by weight or less, and further preferably 10% by weight or less from the viewpoint of viscosity. Preferably, 9% by weight or less is particularly preferred.

(4) Properties In the tobacco material of the present invention, tobacco particles having an average particle diameter of 30 μm or less are dispersed in an aqueous dispersion medium. Preferably, the amount of tobacco particles in the tobacco material is from 1 to 40% by weight in dry state. When the amount of tobacco particles is in this range, the tobacco material of the present invention becomes a slurry having a suitable viscosity, and it becomes easy to apply to a substrate using a spray or the like, and uniform application becomes possible.

The pH of the tobacco material of the present invention is preferably 4.8 or less, more preferably 4.6 or less. The tobacco material obtained by the method of Patent Document 1 has a problem that the water activity is increased and the microorganism is proliferated, but the tobacco material of the present invention whose pH is in this range is difficult for the microorganism to grow and can maintain the quality. It also has the feature of The pH of the tobacco material is determined by measuring the hydrogen ion concentration in the tobacco material using a pH meter.

The viscosity of the tobacco material of the present invention is preferably 10 to 500 cp at 20 ° C., more preferably 10 to 200 cp, when the concentration of the tobacco particles is 16.7% by weight. The viscosity is measured by a B-type viscometer.

(5) Additives The tobacco material of the present invention may contain various additives. Additives include, for example, spearmint leaves for flavor and taste design, peppermint leaves, tea leaves such as green tea, coffee, cocoa, cardamom, menthol, materials for food such as sugar, and dispersion improvement by viscosity adjustment. Examples include polysaccharide thickeners such as glucan and pectin, additives for food such as various emulsifiers, sizing agents such as sodium carboxymethyl cellulose (CMC), curing agents for improving handling after addition to tobacco, etc. it can. The timing at which the additive is added is not limited, and it may be added and pulverized together before pulverizing the tobacco material, or may be added to the tobacco material. Although the ratio of additives may be optional, when the additive is contained, the total amount of tobacco particles and dispersion medium in the tobacco material of the present invention is preferably 90% by weight or more in the total amount of the tobacco material, 95% by weight It is more preferable that it is more than.

2. Process for Producing Tobacco Material of the Present Invention The tobacco material of the present invention prepares a dispersion containing an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium as described above, It is preferable to manufacture by the method including the process of heating a dispersion liquid at 160 degreeC or more. By heating the dispersion to 160 ° C. or higher, it is possible to decompose substances such as hemicellulose which causes interaction with water to cause thickening, and the amount thereof can be reduced. From this viewpoint, the heating temperature is preferably more than 150 ° C., and more preferably 160 ° C. or more. If the temperature is excessively high, deterioration of the active ingredient is caused, so the upper limit of the heating temperature is preferably 200 ° C. or less, more preferably 190 ° C. or less, and still more preferably 180 ° C. or less. The heating is preferably performed under pressure using an apparatus such as a pressure cooker. The pressure is preferably 1.8 MPa or more. The tobacco material of the present invention produced under these conditions also exhibits the effect that the growth of microorganisms is particularly difficult.

3. Tobacco Product A tobacco product can be obtained by adding the tobacco material of the present invention to a substrate. The substrate is the tobacco body or attachment in a smokeable cigarette. Examples of the tobacco body include tobacco immediately after harvest, dried tobacco, tobacco to which a flavor is added, cut tobacco, and cigarettes, and examples of accessory parts include wrapping paper, filters, tip paper and the like. As a method of adding a tobacco material to a base material, although dripping, spraying, application | coating, impregnation etc. are mentioned, it does not specifically limit.

When the tobacco material of the present invention is added to cigarettes, it can be added to cut tobacco, wrapping paper, filters, tipping paper, etc. constituting cigarettes. The addition site may be one, or may be added at two or more sites such as adding to cut tobacco and chip paper respectively. It is also possible to add different flavors when smoking tobacco products such as cigarettes by adding tobacco materials obtained from different cigarette types to different points of the paper wrapper. When a tobacco material is added to a cigarette filter, the filter can also be impregnated.

When the tobacco material of the present invention is added to tobacco cutting, the amount of tobacco particles contained in the tobacco material is 0.01 to 5% by weight with respect to the weight of the tobacco cutting, from the viewpoint of flavor flavoring efficiency. Is preferred. When tobacco having a strong flavor is used as the tobacco material, the ratio can be made smaller, such as 0.01 to 0.1% by weight.

Example 1
Using leaf tobacco material (Brazil yellow seed material), tobacco particles having an average particle diameter of 30 μm were prepared as follows.
The leaf tobacco raw material was crushed to 10 mm or less using a cutter mill manufactured by Tokyo Atomizer. Thereafter, the crushed leaf tobacco raw material is roughly crushed to an average particle diameter of 100 μm or less using a CONDUX impact mill manufactured by NETZSCH, and then finely pulverized using an impact type pulverizer CSM manufactured by NETZSCH to obtain tobacco particles having an average particle diameter of 30 μm or less Obtained.

The tobacco particles were mixed with sterile water to obtain a slurry in which the tobacco particles were suspended in water. The content of tobacco particles (absolute drying) in the slurry was 16.7% by weight. The slurry was sealed in four reaction vessels and subjected to high temperature and high pressure treatment under the following conditions, respectively, to produce the tobacco material of the present invention. There was no change in the suspended state of tobacco particles even after high temperature and high pressure treatment.
A: 160 ° C-10 minutes B: 180 ° C-10 minutes C: 180 ° C-30 minutes D: 180 ° C-60 minutes

The viscosity of the treated slurry was measured at 20 ° C. using a B-type viscometer (rotor No. 1, rotation speed 0.3 to 100 rpm).

Furthermore, the content of cellulose and hemicellulose was measured for the tobacco material (slurry) of the present invention as follows.
1) The slurry was washed with water, and the sedimented residue was collected by centrifugation (8000 rpm, 10 minutes). This operation was repeated twice.
2) The collected residue was rinsed with ethanol, and the sedimented residue was collected by centrifugation (8000 rpm, 10 minutes). This operation was repeated twice.
3) The resulting residue was dried in a thermostat (100 ° C. for 2 hours).
4) Weigh the dried residue, consign to the Japan Food Analysis Center, determine the amount of cellulose and hemicellulose by Van soest method, and determine the content of cellulose and hemicellulose based on the weight of bone-dried tobacco particles The

Example 2
The tobacco material of the present invention was manufactured and evaluated in the same manner as in Example 1 except that the content of tobacco particles (absolute drying) was changed to 14.3% by weight, and the high-temperature and high-pressure treatment was changed to D described above.

[Example 3]
The tobacco material of the present invention was produced and evaluated in the same manner as in Example 1 except that the content of tobacco particles (absolute drying) was changed to 20.0% by weight, and the high-temperature and high-pressure treatment was changed to D described above.

Comparative Example 1
A comparative tobacco material was produced and evaluated in the same manner as in Example 1 except that the high temperature and high pressure treatment was changed to the following.
X: not implemented Y: 150-5 minutes Z: 150 ° C-15 minutes

[Comparative Examples 2 and 3]
A comparative tobacco material was produced and evaluated in the same manner as in Examples 2 and 3 except that the high temperature and high pressure treatment was not performed.
These results are shown in FIG. 1, FIG. 2, Table 1, and Table 2.

As shown in FIG. 1, the comparative tobacco material treated with the conditions Y and Z in Comparative Example 1 (hereinafter referred to as “Comparative Example 1Y and the like”) showed a tendency to be thickened. This is presumed to be because the interaction with water was increased because the polysaccharide was not extracted in large amounts into the aqueous medium and was not decomposed by the high temperature and high pressure treatment under the conditions. On the other hand, in the tobacco material of the present invention such as Example 1A, it is considered that viscosity reduction is achieved by decomposing polysaccharides containing hemicellulose after being extracted in large amounts in the aqueous medium. From the above, it is clear that the tobacco material of the present invention having a hemicellulose content equal to or less than a predetermined value has a low viscosity.

Example 4
For the tobacco material of the present invention (cigarette particle (absolute dry) content: 16.7% by weight) treated under high temperature and high pressure conditions A and C in Example 1, the treated product is in a slurry using a pH meter manufactured by METTLER TOLEDO Hydrogen ion concentration was measured. The tobacco material was divided into 50 ml vials and subjected to storage tests. The storage test was performed by storing the vials in a constant temperature room at 35 ° C. Immediately after the start of the storage test, sampling was performed for 72 hours and 120 hours, and the number of viable bacteria was measured. The measurement of the general viable count was carried out as follows according to the method described in Japan Food Research Laboratories HP.
1) The sample was diluted with sterile water to prepare a 10-fold serial dilution.
2) The samples diluted to each concentration were seeded on a standard agar medium, cultured at 35 ° C. for 2 days, and the number of colonies was counted after culture.
3) The initial viable count of the sample was calculated based on the difference in the number of colonies appeared for each dilution ratio.

Comparative Example 4
A storage test was conducted on a comparative tobacco material not subjected to the high temperature and high pressure treatment of Comparative Example 1 in the same manner as in Example 4.

These results are shown in FIG. 2 and FIG. From FIG. 2, the tobacco material of Comparative Example 4 which has not been subjected to high temperature and high pressure treatment grows to 100 to 1000 times the number of bacteria during storage, but the tobacco material of the present invention grows even when stored for 120 hours. It is clear that you did not. It can be seen from FIG. 3 that the high temperature and high pressure treatment is an environment in which the slurry suppresses the growth of bacteria.

Claims

A tobacco material comprising an aqueous dispersion medium and tobacco particles having an average particle size of 30 μm or less dispersed in the dispersion medium,
A tobacco material, wherein the hemicellulose content in the tobacco material is 0.8 wt% or less based on bone dry tobacco particles.
The tobacco material according to claim 1, wherein the pH is 4.8 or less.
The tobacco material according to claim 1, wherein the aqueous dispersion medium comprises an aqueous organic compound.
The tobacco material according to claim 3, wherein the aqueous organic compound is selected from the group consisting of monohydric alcohols, polyhydric alcohols, sugar alcohols, saccharides, polyhydric alcohol esters, and combinations thereof.
The tobacco material according to claim 1, wherein a content of water in the aqueous dispersion medium is more than 50% by weight in the aqueous dispersion medium.
The tobacco material according to claim 1, wherein the content of the tobacco particles is 1 to 40% by weight.
The tobacco material according to claim 1, wherein the tobacco particles are particles derived from a tobacco raw material, a fermented product of tobacco raw material, or a heat-treated tobacco raw material.
The tobacco material according to claim 7, wherein the variety of tobacco material is a yellow variety, a burley species, a native species, or an orient leaf.
Preparing a dispersion containing an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium, and heating the dispersion to 160 ° C. or higher,
A method of producing a tobacco material according to claim 1.
The method according to claim 9, wherein the heating is performed under pressure.
A tobacco product comprising the tobacco material of claim 1.
A tobacco product according to claim 11, further comprising a substrate, comprising 0.01 to 5% by weight of the tobacco particles relative to the substrate.
A method of producing a tobacco product according to claim 12, comprising the step of adding the tobacco material according to claim 1 to the substrate.