KR102425798B1 - tobacco material - Google Patents

Abstract

A tobacco material comprising an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium, wherein the hemicellulose content in the tobacco material is 0.8 wt% or less based on absolute dry tobacco particles. The tobacco material is characterized by low viscosity.

Description

tobacco material

The present invention relates to a tobacco material and a tobacco product comprising the same.

BACKGROUND ART In smoking articles, it is practiced to develop smoking articles corresponding to various tastes by adjusting the taste. As a method of adjusting the taste, for example, Patent Document 1 discloses a method in which leaf tobacco particles are dispersed in a dispersion medium and the dispersion is added to lean tobacco. Moreover, in patent document 2, the method of heating suspension of a tobacco particle and improving a flavor using a Maillard reaction etc. is disclosed (patent document 2 paragraph 0013). The said tobacco particle is less than 40 mesh (patent document 2 paragraph 0024), ie, less than 400 micrometers. On the other hand, the suspension of tobacco particles is also known as a raw material of a reconstituted tobacco sheet, and Patent Document 3 discloses heating a suspension of 60 to 400 mesh tobacco particles to 80 to 180° F. (26.7 to 82.2° C.) (Patent Document 3) paragraph 0056). The particle diameter of the said tobacco particle is 38-250 micrometers.

Patent Document 1: International Publication No. 2014/185103 Patent Document 2: Japanese Patent Laid-Open No. 10-66559 Patent Document 3: Japanese Patent Laid-Open No. 6-46817

The method of Patent Document 1 is a useful technique in that it can uniformly impart flavor to lean tobacco or the like. However, in the step of preparing a tobacco raw material dispersion by mixing a tobacco raw material and a solvent such as water, the inventors have found that the viscosity of the dispersion increases due to the interaction of the water-soluble component derived from the tobacco raw material and water, etc., making it difficult to spray, etc. found that there is a problem with In view of the above, this invention makes it a subject to provide the low-viscosity tobacco material in which the tobacco particle is disperse|distributed to the aqueous dispersion medium. Regarding the increase in viscosity, Patent Document 1 has no suggestion at all, and Patent Documents 2 and 3 do not even disclose such particles. Therefore, the said subject is a subject peculiar to the use of microparticles|fine-particles with an average particle diameter of 30 micrometers or less, and it is a novel subject discovered by the inventors.

The inventors have solved the said subject by making quantity of hemicellulose into a fixed amount or less in the tobacco material containing the tobacco particle with the average particle diameter 30 micrometers or less disperse|distributed in the aqueous dispersion medium and the said dispersion medium. That is, the said subject is solved by the following invention.

(1) A tobacco material comprising an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 µm or less dispersed in the dispersion medium,

The tobacco material, wherein the hemicellulose content in the tobacco material is 0.8% by weight or less based on absolutely dry tobacco particles.

(2) The tobacco material as described in (1) whose pH is 4.8 or less.

(3) The tobacco material as described in (1) or (2) in which the said 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) Tobacco material in any one of (1)-(4) whose content of water in the said aqueous dispersion medium is more than 50 weight% in the said aqueous dispersion medium.

(6) Tobacco material as described in any one of (1)-(5) whose content of the said tobacco particle is 1 to 40 weight%.

(7) Tobacco material as described in any one of (1)-(6) whose said tobacco particle is particle|grains derived from a tobacco raw material, the fermented material of a tobacco raw material, or the heat-processed material of a tobacco raw material.

(8) The tobacco material according to (7), wherein the variety of the tobacco raw material is a xanth species, a burley species, a conventional species, or an orient leaf.

(9) a step of preparing a dispersion comprising an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium, and

Including the step of heating the dispersion to 160 ° C. or higher,

The manufacturing method of the tobacco material in any one of (1)-(8).

(10) The manufacturing method according to (9), wherein the heating is performed under pressure.

(11) Tobacco product containing the tobacco material in any one of said (1)-(8).

(12) The tobacco product according to (11), further comprising a substrate, comprising 0.01 to 5% by weight of the tobacco particles relative to the substrate.

(13) The manufacturing method of the tobacco product as described in (12) including the process of adding the tobacco material in any one of said (1)-(8) to the said base material.

ADVANTAGE OF THE INVENTION By this invention, the low-viscosity tobacco material in which the tobacco particle|grains are disperse|distributed in the aqueous dispersion medium can be provided.

1a is a diagram showing the viscosity of a tobacco material;
1b is a diagram showing the viscosity of a tobacco material;
1c is a diagram showing the viscosity of a tobacco material;
2 is a diagram showing the results of the device test;
3 is a diagram showing the pH of the tobacco material;

Hereinafter, the present invention will be described in detail. In the present invention, "X to Y" includes the end values of X and Y.

1. Tobacco material

Tobacco material of the present invention contains an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 µm or less dispersed in the dispersion medium.

(1) tobacco particles

Tobacco particles may be derived from a tobacco raw material, a fermented product of a tobacco raw material, or a heat-treated product of a tobacco raw material. A tobacco raw material is the whole tobacco or a part of a tobacco, and as a part, a leaf, leaf vein, a stem, a root, a flower, and a mixture thereof can be used. Although it does not restrict|limit especially as a kind of tobacco, A xanthoma, a burly species, a conventional species, an orient leaf, etc. are mentioned. As for the state of the tobacco raw material to be used, the raw leaf which did not dry immediately after harvest etc. may be sufficient, or the thing which carried out the drying process after harvesting may be sufficient and you may use these in combination. Moreover, it is also possible to use solid tobacco, expanded tobacco, and sheet tobacco obtained by treating these tobacco raw materials. These may be used independently and may be used combining multiple types of varieties and parts.

Although a tobacco particle can be prepared by arbitrary methods, after performing a normal drying process to a tobacco raw material, after coarsely grinding|pulverizing with a normal coarse grinder, it is preferable to grind fine. Drying treatment and coarse grinding may be carried out as well known, and it is preferable that the average particle diameter of the coarsely crushed tobacco particles is in the range of several hundreds of micrometers to several mm. The method of fine pulverization is not limited, either, and any method of wet pulverization or dry pulverization may be used. Wet grinding can be carried out by adding and mixing a dispersion medium of a liquid to the coarsely pulverized tobacco particles, and treating the mixture with a wet pulverizer (eg, MIC-2: manufactured by Nara Machinery Co., Ltd.). It is preferable that the rotation speed is usually 1100 to 1300 rpm, and the pulverization time is about 5 to 100 minutes. In addition, dry grinding can be performed by processing coarsely grind|pulverized tobacco particles with dry fine grinders, such as a jet mill.

Thus, the average particle diameter of the obtained tobacco particle is 30 micrometers or less, Preferably it is 20 micrometers or less. By having such an average particle diameter, it becomes difficult to generate nozzle clogging when spraying a dispersion liquid, and it becomes easy to disperse the tobacco particles uniformly in a tobacco material, and it is possible to uniformly impart taste to a smoking article. can In one aspect, the lower limit of the average particle diameter of a tobacco particle is 5 micrometers or more, and in another aspect, it is 8 micrometers or more. The average particle diameter of tobacco particles can be adjusted by grinding conditions, for example, the average particle diameter can be increased by shortening the pulverization time and making the dispersion medium low in viscosity.

The average particle diameter in this invention is calculated|required by the laser diffraction scattering method. Specifically, the average particle diameter in the present invention is measured using a laser diffraction particle size distribution analyzer (eg, Shimadzu nano particle size distribution analyzer SALD-2100) with a refractive index of 1.60 to 0.101.

(2) aqueous dispersion medium

The aqueous dispersion medium is a liquid medium containing water. Although water alone may be sufficient as an aqueous dispersion medium, it may contain the 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 water-insoluble, it can be dissolved in an aqueous dispersion medium by using in combination with an amphiphilic organic compound such as methanol.

Examples of the monohydric alcohol include monovalent C1-propanol such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-1-propanol, 2,2-dimethylethanol, and cyclohexanol. and monohydric alcohols having an aromatic substituent such as C6 aliphatic alcohol and benzyl alcohol, in addition, monohydric alcohols containing at least one halogen element, monohydric alcohols having at least one ether bond, and the like.

Although polyhydric alcohol is a generic name of the compound which has two or more hydroxyl groups in one molecule, Although it is not limited, Glycerol and propylene glycol are mentioned.

Examples of the sugar alcohol include sorbitol, multitol, xylitol, erythritol, lactitol, sorbitan, xylose, arabinose, mannose, and trehalose.

Examples of the saccharide include lactose, sugar, coupling sugar, glucose, enzyme starch syrup, acid saccharified starch syrup, maltose starch syrup, maltose, isomerized sugar, fructose, reduced maltose, reduced starch starch syrup, and buckwheat.

As polyhydric alcohol ester, fatty acid polyhydric alcohol ester, such as a fatty acid triglyceride, etc. are mentioned.

The aqueous dispersion medium can be used as a medium for wet grinding tobacco. In this case, the tobacco material of the present invention can be prepared with fine pulverization. At this time, if the mixed solvent of water and glycerol is used, since it is easy to adjust the average particle diameter of tobacco particles to a desired range, it is preferable. When obtaining tobacco particles by dry pulverization, the tobacco material of the present invention can be prepared by mixing the pulverized tobacco particles and an aqueous medium.

The mixing ratio of water and the said organic compound is not limited, Especially when using the mixed solvent of water and glycerol, the mixing ratio may be arbitrary. However, from the viewpoints 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 contains 0.8% by weight or less of hemicellulose based on the dry tobacco particles. Since hemicellulose easily interacts with water, it increases the viscosity of the tobacco material. However, in the present invention, since the amount of hemicellulose is reduced, the viscosity is low, resulting in the effect of being easy to spray on a substrate such as tobacco. From this point of view, the amount of hemicellulose is preferably 0.5% by weight or less based on the absolute dry tobacco particles. Although the lower limit of the amount of hemicellulose is not limited, It is preferable that it is 0 weight%, or it is preferable that it is 0.1 weight% or more.

The cellulose concentration in the tobacco material of the present invention is not limited, but from the viewpoint of viscosity, preferably 12% by weight or less, more preferably 10.5% by weight or less, more preferably 10% by weight or less, based on the absolute dry tobacco particles, , 9% by weight or less is particularly preferred.

(4) Characteristics

As for the tobacco material of this invention, the tobacco particle whose average particle diameter is 30 micrometers or less is disperse|distributed in the aqueous dispersion medium. It is preferable that the quantity of the tobacco particle in a tobacco material is 1 to 40 weight% in an absolute dry state. If the quantity of a tobacco particle is this range, the tobacco material of this invention becomes a slurry which has a moderate viscosity, it becomes easy to apply|coat to a base material using a spray etc., and uniform application|coating becomes possible.

Moreover, it is preferable that it is 4.8 or less, and, as for pH of the tobacco material of this invention, it is more preferable that it is 4.6 or less. Although the tobacco material obtained by the method of patent document 1 had the problem that water activity rises and microorganisms proliferate, the tobacco material of this invention whose pH is this range is also equipped with the characteristic that microorganisms are hard to multiply and quality can be maintained. The pH of a tobacco material is calculated|required by measuring the hydrogen ion concentration in a tobacco material using a pH meter.

When the density|concentration of a tobacco particle is 16.7 weight%, it is preferable that it is 10-500 cp at 20 degreeC, and, as for the viscosity of the tobacco material of this invention, it is more preferable that it is 10-200 cp. Viscosity is measured with a Type B viscometer.

(5) additives

The tobacco material of this invention may contain the various additives. As an additive, for example, spearmint leaf, peppermint leaf, tea leaves such as green tea for taste design, food materials such as coffee, cocoa, cardamom, menthol, and sugar, or to improve dispersibility by adjusting viscosity Thickening polysaccharides such as glucan and pectin to be used, food additives such as various emulsifiers, size agents such as sodium carboxymethylcellulose (CMC), and curing agents for improving handling after addition to tobacco. . The timing of adding the said additive is not limited, Before adding a tobacco raw material finely, you may grind together, and you may add to a tobacco material. Although the ratio of an additive may also be arbitrary, when an additive is included, it is preferable that the total amount of the tobacco particle in the tobacco material of this invention and a dispersion medium is 90 weight% or more in the whole quantity of a tobacco material, 95 weight% More preferably.

2. Method for producing the tobacco material of the present invention

Tobacco material of the present invention, as described above, prepare a dispersion comprising 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 Method comprising the steps of It is preferably made with By heating the dispersion to 160° C. or higher, it is possible to decompose substances such as hemicellulose, which cause an interaction with water to increase, and the amount thereof can be reduced. From this viewpoint, the heating temperature is preferably more than 150°C, more preferably 160°C or more. Since deterioration of the active ingredient is caused when the temperature is excessively high, 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. It is preferable to perform heating under pressure using apparatuses, 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 microorganisms are particularly difficult to proliferate.

3. Tobacco Products

By adding the tobacco material of this invention to a base material, it can be set as a tobacco product. A base material is a tobacco main body or an accessory member in a smokeable cigarette. Examples of the tobacco body include immediately after harvest tobacco, dried tobacco, flavored tobacco, lean tobacco, and cigarette, and accessory parts include wrapper, filter, chip paper, and the like. Although dripping, spraying, application|coating, impregnation, etc. are mentioned as a method of adding a tobacco material to a base material, It is not specifically limited.

When the tobacco material of the present invention is added to a cigarette, it can be added to thin tobacco, wrapper, filter, chip paper, etc. constituting the cigarette. The location to be added may be one, or it may be added to two or more places, such as adding to each thin tobacco and chip paper. In addition, it is also possible to impart a different taste when smoking a tobacco product such as a cigarette by adding a tobacco material obtained from a different kind of tobacco to another point of the wrapper. When tobacco material is added to the filter of the cigarette, the filter may be impregnated.

When the tobacco material of the present invention is added to cut tobacco, from the viewpoint of taste imparting efficiency, it is preferable that the amount of tobacco particles contained in the tobacco material is 0.01 to 5 wt % with respect to the weight of the lean tobacco. When tobacco with strong flavor is used for the tobacco material, the ratio may be made smaller, such as 0.01 to 0.1% by weight.

Example

[Example 1]

Tobacco particles having an average particle diameter of 30 µm were prepared as follows using a leaf tobacco raw material (a raw material for yellow species from Brazil).

The leaf tobacco raw material was crushed to 10 mm or less using a cutter mill made by Tokyo Atomizer. After that, the crushed leaf tobacco raw material is coarsely pulverized to an average particle size of 100 μm or less using a CONDUX impact mill manufactured by NETZSCH, and then finely pulverized using a NETZSCH impact fine grinder CSM to obtain tobacco particles having an average particle size of 30 μm or less. got it

The tobacco particles were mixed with sterile water to obtain a slurry in which the tobacco particles were suspended in water. Content of the tobacco particle (absolute dryness) in the said slurry was 16.7 weight%. The said slurry was enclosed in four reaction vessels, it used for high temperature and high pressure process on the following conditions, respectively, and the tobacco material of this invention was manufactured. There was no change in the suspended state of the tobacco particles even after high-temperature and high-pressure treatment.

A: 160℃-10min

B: 180°C - 10 minutes

C: 180°C - 30 minutes

D: 180°C - 60 minutes

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

Moreover, about the tobacco material (slurry) of this invention, content of a cellulose and a hemicellulose was measured as follows.

1) The slurry was washed with water, and the residue settling by centrifugation (8000 rpm, 10 minutes) was collect|recovered. This operation was repeated twice.

2) The recovered residue was rinsed with ethanol, and the precipitated residue was recovered by centrifugation (8000 rpm, 10 minutes). This operation was repeated twice.

3) The obtained residue was placed in a thermostat and dried (100° C. - 2 hours).

4) The weight of the dried residue was weighed and entrusted to the Japan Food Analysis Center, cellulose and hemicellulose were quantified according to the Van soest method, and the content of cellulose and hemicellulose based on the weight of the dry tobacco particles was determined.

[Example 2]

The tobacco material of this invention was manufactured and evaluated like Example 1 except having changed content of tobacco particle (absolute dryness) into 14.3 weight% and having made high-temperature and high-pressure process into said D.

[Example 3]

The tobacco material of this invention was manufactured and evaluated like Example 1 except having changed content of tobacco particle (absolute dryness) into 20.0 weight%, and having made high-temperature and high-pressure process into said D.

[Comparative Example 1]

Except having changed the high temperature and high pressure process to the following, it carried out similarly to Example 1, and produced and evaluated the tobacco material for a comparison.

X: not done

Y: 150-5 minutes

Z: 150°C - 15 minutes

[Comparative Examples 2 and 3]

Except not having performed high temperature and high pressure processing, it carried out similarly to Examples 2 and 3, and produced and evaluated the tobacco material for a comparison.

These results are shown in FIG. 1, FIG. 2, Table 1, and Table 2. FIG.

As shown in FIG. 1, the tendency to increase was seen in the comparative tobacco material (henceforth "Comparative Example 1Y" etc.) processed by the conditions Y and Z in Comparative Example 1. This is presumably because the interaction with water increased because polysaccharides were extracted in a large amount in the aqueous medium and not decomposed by the high-temperature and high-pressure treatment under the conditions. On the other hand, it is thought that the tobacco material of this invention, such as Example 1A, was decomposed|disassembled after the polysaccharide containing hemicellulose etc. were extracted in a large amount in an aqueous medium, and viscosity-lowering was achieved. From the above, it is clear that the tobacco material of the present invention in which the amount of hemicellulose is equal to or less than a certain value has a low viscosity.

[Example 4]

With respect to the tobacco material of the present invention (tobacco particle (absolute dry) content: 16.7 wt%) treated under high temperature and high pressure conditions A and C in Example 1, the treated product was a pH meter manufactured by METTLER TOLEDO, and the hydrogen ion concentration in the slurry was measured. The tobacco material was dispensed into 50 ml vials and subjected to apparatus testing. The apparatus test was carried out by placing the vial in a constant temperature room at 35°C. Immediately after the start of the device test, sampling was performed after 72 hours and 120 hours, and the number of normal viable cells was measured. The general number of viable cells was measured as follows according to the method described in the Japan Food Analysis Center HP.

1) The sample was diluted with sterile water to prepare a 10-fold dilution sample solution.

2) 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 number of viable cells in the sample was calculated based on the difference in the number of colonies that appeared for each dilution.

[Comparative Example 4]

About the tobacco material for comparison which did not perform the high temperature and high pressure process of the comparative example 1, it carried out similarly to Example 4, and implemented the apparatus test.

These results are shown in FIGS. 2 and 3 . From FIG. 2, although the number of bacteria of the tobacco material of Comparative Example 4 which was not subjected to high-temperature and high-pressure treatment proliferated in an apparatus by 100 to 1000 times, it is clear that the tobacco material of the present invention did not proliferate even if it was placed for 120 hours. It turns out from FIG. 3 that the slurry becomes an environment which suppresses the proliferation of a microbe by high-temperature and high-pressure process.

Claims (13)

A tobacco material comprising an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium,
The tobacco material, wherein the hemicellulose content in the tobacco material is 0.8% by weight or less based on the absolute dry tobacco particles. The method of claim 1,
A tobacco material having a pH of 4.8 or less. The method of claim 1,
The tobacco material in which the said aqueous dispersion medium contains an aqueous organic compound. 4. The method of claim 3,
Tobacco material, wherein said aqueous organic compound is selected from the group consisting of monohydric alcohols, polyhydric alcohols, sugar alcohols, saccharides, polyhydric alcohol esters, and combinations thereof. The method of claim 1,
The tobacco material whose content of water in the said aqueous dispersion medium is more than 50 weight% in the said aqueous dispersion medium. The method of claim 1,
The content of the tobacco particles is 1 to 40% by weight, tobacco material The method of claim 1,
The tobacco material whose said tobacco particle is a particle|grain derived from a tobacco raw material, the fermented material of a tobacco raw material, or the heat-processed material of a tobacco raw material. 8. The method of claim 7,
Tobacco material, wherein the variety of the tobacco raw material is a yellow species, a Burley species, a conventional species, or an orient leaf. A step of preparing a dispersion comprising an aqueous dispersion medium and tobacco particles having an average particle diameter of 30 μm or less dispersed in the dispersion medium, and
Including the step of heating the dispersion to 160 ° C. or higher,
The method for producing a tobacco material according to claim 1 . 10. The method of claim 9,
The manufacturing method which implements the said heating under pressure. A tobacco product comprising the tobacco material according to claim 1 . 12. The method of claim 11,
A tobacco product, further comprising a substrate, comprising 0.01 to 5% by weight of said tobacco particles relative to said substrate. The manufacturing method of the tobacco product of Claim 12 including the process of adding the tobacco material of Claim 1 to the said base material.

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