TW201500013A - Method for manufacturing tobacco material - Google Patents

Abstract

The present invention provides a method for manufacturing a tobacco material with an enhanced flavor component, including a step of smoking-processing dry tobacco leaves, a step of adding alcohol to the dried tobacco leaves that have been smoking-processed, and a step of storing the alcohol-added tobacco leaves.

Description

Method for producing tobacco raw materials

The present invention relates to a method of producing a tobacco material.

It has long been tried to improve the aroma of raw leaf tobacco. For example, Patent Document 1 describes a method of adding ethanol to leaf tobacco before the barrel baking step of leaf tobacco.

According to this technique, a large amount of carbonic acid is released by activating the oxidation reaction, decomposition, deamination, etc. of a protein-based polymer compound, a nitrogen-containing compound, a saccharide or the like in leaf tobacco by chemical action of ethanol adsorbed on leaf tobacco. The gas is cooked on one side. Next, it is described that a cigarette using the leaf tobacco obtained by such fermentation contains a large amount of an organic acid such as formic acid or acetic acid in the smoke at the time of smoking. In addition, it is also reported that acetaldehyde, acetone, acrolein, acetol, and the like which cause odor and irritation during smoking are reduced.

Advanced technical literature

Patent Document 1: Japanese Patent Laid-Open No. 56-51976

According to the method described in Patent Document 1, it is described that when ethanol is added to leaf tobacco, cigarettes using leaf tobacco to which ethanol is added are increased in smoking. The organic acid content contained in the smoke, but the added compound is only related to the organic acid.

In this regard, the present invention is directed to an ester compound which imparts a component which imparts aroma to the tobacco raw material. A method of enhancing the aroma of a tobacco material by increasing such aroma components in the tobacco material is provided.

The inventors of the present invention carefully reviewed and found that the method was obtained by the steps of the steps of drying the tobacco leaves by smoking, the steps of adding the alcohol to the dried tobacco leaves by the smoked treatment, and the step of placing the tobacco leaves with the alcohol added. In the tobacco raw material, the content of the ester which enhances the flavor is increased, thereby completing the present invention.

That is, the present invention is as follows.

[1] A method for producing a tobacco raw material, comprising the steps of: treating a dried tobacco leaf by smoking, adding an alcohol to the dried tobacco leaf by the smoked treatment, and storing the tobacco leaf after adding the alcohol.

[2] The production method according to [1], wherein, after the hiding step, the step of adding a polyol to the tobacco leaf is further included.

[3] The production method according to [1], wherein the storing step is performed at room temperature to 70 ° C for a period of one week or longer.

[4] The production method according to any one of [1] to [3] wherein the storing step is performed under a sealed condition.

[5] The production method according to any one of [1] to [4] wherein the smoking treatment is performed by a cold smoking method.

[6] A tobacco product comprising the tobacco raw material produced by the production method according to any one of [1] to [5].

According to the present invention, a method for producing a tobacco raw material which enhances the content of an ester compound of a flavor component can be provided.

Figure 1 shows the relationship between the number of smoked treatments of tobacco leaves and the content of organic acids. (a) is the content of acetic acid, and (b) is isobutyric acid, butyric acid, isovaleric acid, 2-methylbutyric acid, valeric acid. The content.

Fig. 2 is a view showing the difference in the organic acid composition obtained when the type of wood used in the tobacco leaf treatment is changed.

Fig. 3 is a view showing a case where only the smoking treatment step is carried out, a case where the ethanol is added after the smoking treatment step, a step of adding the menthol after the smoking treatment step, and a case after the smoking treatment step. In the case of the ethanol and menthol steps, the organic acid content of each tobacco material.

Figure 4 (a) to (h) show the steps of adding alcohol to the smoked dried tobacco leaves (1 on the horizontal axis in the figure), and the tobacco leaves to which the alcohol is added are stored for 1 week. The amount of change in the organic acid ester in the tobacco raw material when propylene glycol of each concentration is added after the step (2 to 4 on the horizontal axis in the figure).

The present invention is described in detail below with reference to the accompanying drawings, and the embodiments of the invention.

The method for producing the tobacco raw material of the present invention comprises the steps of: smoking the dried tobacco leaves, adding the alcohol to the dried tobacco leaves by the smoked treatment, and placing the tobacco leaves added with the alcohol.

In the manufacturing method of the present invention, the tobacco leaf which is subjected to the smoking treatment is subjected to a drying treatment. A well-known method is mentioned as a drying process. The dried tobacco leaf of the present invention means that the moisture content of the dried tobacco leaves is less than 15% by weight.

The drying treatment is not particularly limited, and a known method can be used.

The tobacco leaf to be used is not particularly limited, and examples thereof include a yellow or rib type of Nicotiana tabacum, a Brasilia species of Nicotiana rustica, and the like.

The tobacco leaves are cut and made into tobacco filaments by known methods.

<Steps of smoking treatment>

The method of the tobacco-treated tobacco leaf can be exemplified by a known method, and examples thereof include a hot smoke treatment, a warm smoke treatment, and a cold smoke treatment.

The hot smoke treatment is a treatment of smoking tobacco leaves at a temperature of about 60 to 120 °C. The treatment time can be arbitrarily set according to the amount of the organic acid to be required, and is, for example, about 10 minutes to 1 hour.

The warm smoke treatment is a treatment of smoking tobacco leaves at a temperature of about 30 to 60 ° C. The treatment time can be arbitrarily set depending on the amount of organic acid required to be added, and is, for example, about 10 minutes to 1 day.

The cold smoke treatment is a treatment of smoking tobacco leaves at a temperature of about 15 to 30 °C. The treatment time can be arbitrarily set according to the amount of the organic acid to be required, but it is, for example, about 10 minutes to 4 weeks.

The type of wood to be used for generating smoke is not particularly limited, and examples thereof include white oak, cherry, walnut, apple, alfalfa, alfalfa, and pecan. In addition, wood can be burned or heated in order to produce smoke. The heating temperature may be from 350 ° C to 650 ° C, preferably from 450 ° C to 500 ° C.

Any of the smoking treatments can be carried out by a known smoker or the like.

Organic acids such as acetic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, and 2-methylbutyric acid can be imparted to tobacco leaves by smoking treatment on tobacco leaves.

An organic acid can be imparted to the tobacco leaves using any of the above-described smoking treatments. From the viewpoint of the operability of the manufacturing apparatus (ease of washing), the smoking treatment can be carried out by a cold smoking treatment. The smoking treatment time at this time is preferably from 10 minutes to 1 day, more preferably from 1 hour to 3 hours.

<Steps for adding alcohol>

The alcohol to be added to the tobacco leaf obtained by the smoked treatment is not particularly limited, and examples thereof include ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, and 2-methyl-1-propane. a monovalent aliphatic alcohol such as alcohol, 2,2-dimethylethanol or cyclohexanol; a valent alcohol having an aromatic substituent such as benzyl alcohol or phenylethyl alcohol; sorbitol, maltitol, xylose Alcohols such as alcohol, erythritol, lactitol, sorbitol, xylose, arabinose, mannose, trehalose.

These alcohols may be used singly or in combination of two or more.

The tobacco leaves treated with the smoked are given an organic acid as described above, and an alcohol is added to the tobacco leaves, and then stored, whereby the organic acid is reacted with the alcohol to cause esterification. Thereby, the content of the ester compound in the obtained tobacco raw material is enhanced.

The alcohol added to the tobacco leaf may be added in a ratio of 0.000001 to 0.1 unit per 1 weight unit of the tobacco leaf.

The addition of the alcohol is carried out by a general method such as spraying in such a manner that the filament of the tobacco leaf is coated as uniformly as possible.

Further, in the step of adding an alcohol, other fragrances may be added in addition to the above alcohols. Such spices can be exemplified by menthol, lime, peppermint oil, spearmint oil, mint One or more selected from the essential oils of oil, rosemary oil, licorice extract, St. John's wort extract, cocoa, and the like.

The flavor added to the tobacco leaf may be added in a ratio of 0.000001 to 0.1 unit per 1 weight unit of the tobacco leaf.

<Tips step>

The step of depositing the tobacco leaf to which the alcohol is added is preferably carried out under the condition that the ester compound formed in the storage is not volatilized. Such a condition can be exemplified by a sealing condition.

The sealing condition can be exemplified by the use of a closed container. Further, the sealing condition is a condition in which the volatile component such as the low molecular ester compound is not volatilized.

The storage period is not particularly limited as long as it is a sufficient period for producing an ester compound, but it is preferably one week or more in order to sufficiently generate a reaction.

There is basically no upper limit on the upper limit of the period of storage, but it can be considered for about 30 weeks from the time of production of the tobacco raw materials to the time of shipment.

The temperature at the time of storage is preferably a temperature at which the ester compound is sufficiently formed.

Such a temperature is preferably such that the enzyme which promotes the esterification reaction contained in the tobacco leaf is activated and the temperature of the chemical esterification reaction is easily generated.

The specific temperature may be appropriately adjusted in the range of room temperature to 70 ° C, and may be suitably set in the range of 30 to 80 ° C.

In addition to the organic acid imparted by the smoking treatment, the tobacco leaves also contain organic acids originally contained, such as myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, uric acid, and the like. From this point of view, the ester of the organic acid originally contained in the tobacco leaves and the added alcohol is also produced by the step of adding the alcohol and the hiding step.

Further, since tobacco leaves also contain alcohols such as methanol, benzyl alcohol, and phenylethyl alcohol, it is considered that these alcohols also contribute to the process of producing esters by the above-described steps of the present invention.

The organic acid ester to be reinforced in the tobacco raw material obtained by the production method of the present invention may, for example, be ethyl acetate, ethyl valerate, ethyl crotonate, ethyl hexanoate, ethyl myristate or palmitic acid. Ester, ethyl stearate, ethyl oleate, ethyl succinate.

In the production method of the present invention, the step of adding a polyol to the tobacco leaf filament may be included after the hiding step. The polyol may be propylene glycol, glycerin, or a mixture of these. The polyol may be added in an amount of 0.1 to 5% by weight relative to the tobacco leaf filament.

The addition of the polyol is preferably carried out by a general method used in a tobacco production step such as spraying, and is preferably carried out in such a manner that the polyol is spread over the entire tobacco leaf filament.

The polyol has a function of suppressing the esterification reaction between the added alcohol and the organic acid as shown in the experimental examples described later. Therefore, by adding a polyol after the hiding step, it is possible to suppress the re-generation reaction of the added alcohol to form an ester compound, whereby the composition of the ester compound produced in the hiding step of the present invention is not easily changed over time.

This phenomenon is considered to be because the added polyol preferentially forms an ester with an organic acid more than an alcohol.

After the step of adding a polyol, it is preferable to store it for about one week or more from the viewpoint of sufficiently suppressing the esterification reaction between the added alcohol and the organic acid. Furthermore, the storage is preferably carried out under sealed conditions.

In the production method of the present invention, an additive such as the above-mentioned essential oil or extract perfume may be added in an arbitrary amount in any step.

<tobacco products>

When the tobacco raw material of the present invention is, for example, an oral tobacco product, it may be exemplified by a cigarette (Snus). In this case, the tobacco raw material produced by the above-described production method is obtained by filling a packaging material using a raw material such as a nonwoven fabric by a known method. For example, the amount of the tobacco raw material is adjusted and filled, and sealed by means of heat sealing or the like to obtain a mouth-containing smoke.

The use of the packaging material is not particularly limited, but a cellulose-based nonwoven fabric or the like is preferably used.

When the oral tobacco product is, for example, a gum, the above-mentioned tobacco raw material obtained by the production method of the present invention can be obtained by mixing a known gum base with a known method. The chewing tobacco, the tobacco, and the compressed tobacco can be produced by a known method in addition to the above-mentioned tobacco raw material obtained by the production method of the present invention. Further, the edible film can be obtained by using a known material or method in addition to the above-mentioned tobacco raw material obtained by the production method of the present invention.

The tobacco raw material of the present invention can be mixed in a usual ratio in a general tobacco filament and used to produce a cigarette. Further, the tobacco raw material of the present invention may be disposed in a filter portion of a known cigarette. The configuration of the filter portion can be, for example, disposed within the cavity or dispersedly disposed in the filter fibers.

The tobacco material of the present invention can also be used in a warm or non-heated type of cigarette instead of the article.

According to the manufacturing method of the present invention, a tobacco material having enhanced flavor component can be provided. Further, the tobacco raw material produced by the method of the present invention can be used as the tobacco raw material in the tobacco product, and can also be used as a part of the tobacco raw material in the tobacco product. When the tobacco raw material obtained by the present invention is used as a part of the tobacco raw material in the tobacco product, it can be used in any ratio.

Example

The present invention will be more specifically described by the examples, but the scope of the present invention is not limited to the description of the following examples.

<Experimental Example 1> Short-chain fatty acids imparted by tobacco leaf smoked treatment (Detailed description of smoked processing)

20 g of white oak wood chips were weighed on aluminum foil and applied to the bottom of the smoker.

20 g of tobacco filaments were placed on the net in the smoker. Close the lid of the smoker and turn the heater to ON (600W). The battery was continuously heated at 600 W for 5 minutes from the generation of the smoke, and then the heater power was turned OFF. The time until the smoke is generated is approximately 6 to 7 minutes. Place the lid of the smoker in the closed state for 30 minutes (cooling).

The above operation is repeated when the treated tobacco filament is re-smoked.

In the above treatment, the product temperature is about 100 ° C, and the temperature of the wood chips is about 600 ° C.

(Analysis)

The concentration of acetic acid contained in the smoked tobacco leaves was determined in the following order.

To the tobacco-treated tobacco filament 0.5 g, 10 mL of ultrapure water was added, and the mixture was shaken for 30 minutes for extraction.

The extract was subjected to ultrafiltration (molecular weight division 3000) and the filtrate was recovered. The filtrate was diluted with ultrapure water in such a manner as to be in the range of the calibration line, and quantitative analysis was carried out by capillary electrophoresis (DAD detector).

Next, analysis of other organic acids was carried out by SPE-GCMS.

50 mL of ultrapure water was added to 0.5 g of the smoked tobacco filaments, and the mixture was shaken for 30 minutes for extraction.

After the extract was filtered and recovered, hydrochloric acid was added to adjust to pH 2.

The extract was passed through a solid phase extraction crucible (Oasis HLB) adjusted to about 20 mL each of diethyl ether, methanol and 0.01 N aqueous hydrochloric acid, and the hydrazine was dried under a nitrogen stream. The organic acids adsorbed on hydrazine were dissolved in diethyl ether and quantified by GCMS analysis.

The comparative data of the organic acid analysis values before and after the smoked treatment are shown in Fig. 1.

From the results of Fig. 1, it was confirmed that the tobacco leaf can be smoked to increase the organic acid content of the tobacco leaves. Further, it was confirmed that the amount of organic acid to be added was increased by increasing the number of times of smoking treatment.

In addition, the difference in acetic acid concentration obtained when the material used for smoking was changed was investigated.

The order of the materials is in the same order as the white oak described above.

The results are shown in Figure 2.

As can be seen from the results of Fig. 2, changing the type of wood used in the smoking treatment also increases the organic acid content in the tobacco leaves.

<Experimental Example 2> Changes in the composition of organic acids accompanying esterification <Esterification treatment operation>

10 g of tobacco leaf filaments which were subjected to 8 times of smoking treatment in white oak, and various alcohol materials (0.5 g of ethanol, 0.5 g of menthol, 0.5 g of ethanol + 0.5 g of menthol) were placed in a 50 mL capacity screw bottle and sealed. This was stored at a predetermined temperature (70 ° C) for a predetermined period of time (one week) while being heated in a sealed container.

Regarding the above-mentioned esterification treatment, the organic acid composition in which only the smoked treatment (white oak 8 smoked), the smoked treatment, the ethanol addition, the smoked treatment, the menthol, the smoked treatment, and the addition of ethanol and menthol were investigated. The results are shown in Figure 3.

The measurement of the organic acid content was carried out in the same manner as in Experimental Example 1 described above.

From the results of Fig. 3, it can be inferred that an esterification reaction is produced by adding an alcohol and heating the sealed container to reduce the organic acid content.

<Experimental Example 3> Various esters produced by esterification <Ethyl esterification of smoked filaments and quenching by adding a polyol> Esterification and quenching conditions

Add ethanol (5% of the weight of the tobacco leaf filament after the smoked treatment), put it in a screw bottle at 40 ° C for 1 week, and set it at a predetermined concentration for 1 week (1 weight relative to the tobacco leaf) 5%, 2% by weight, 5% by weight) propylene glycol was added.

The analysis of each organic acid ester was carried out by the following procedure after 0 weeks (untreated), one week after the addition of ethanol (before the addition of propylene glycol), and then (after the addition of propylene glycol).

The analysis of the ester compound was carried out in the following manner.

0.5 g of tobacco filaments were accurately weighed into a SPME sample bottle (20 mL capacity), sealed with a sample bottle cap, and analyzed by GCMS with an SPME automatic introduction device.

In addition, a sample of 25 μL of a p-bromophenethyl alcohol acetonitrile solution (1 mg/mL) was added to other SPME sample vials to obtain a peak area ratio of the component to be bromophenylethyl alcohol. The value obtained is compared with the amount of the analyte component contained in each filament sample.

<Analysis conditions>

Device: Gas chromatographic analyzer (6890A) manufactured by Agilent Co., Ltd. Quality detector manufactured by Agilent (5973N)

Injection volume: 1μL (injection in pulse splitless mode)

Column: INNOWAX

Heating chamber: 40 ° C → 250 ° C (3 ° C / min)

Quality detector: TIC mode (mass 29 to 550)

<Analytical component>

Ester compound: ethyl acetate, ethyl valerate, ethyl hexanoate, ethyl crotonate, ethyl hexanoate, ethyl myristate, ethyl palmitate, ethyl stearate, ethyl oleate.

The results of Experimental Example 3 are shown in Figures 4(a) to (h). Further, the value of the vertical axis in Fig. 4 is not the concentration of the organic acid ester, but the peak area value obtained by GCMS analysis. In addition, the horizontal axis numerical value of Fig. 4 indicates the number of weeks passed.

As can be seen from Fig. 4, an organic acid ester was formed in the tobacco leaf to which the alcohol was added after one week of storage. Further, it was found that the subsequent addition of propylene glycol inhibited the formation of the organic acid ester over time as compared with the unadded one.

(industrial availability)

According to the production method of the present invention, a tobacco raw material which enhances a flavor component such as an organic acid ester can be provided.

Claims (6)

A method for producing a tobacco raw material, comprising the steps of: smoking the dried tobacco leaves, adding the alcohol to the dried tobacco leaves by the smoked treatment, and storing the tobacco leaves after adding the alcohol. The manufacturing method according to claim 1, wherein the step of adding the polyol to the tobacco leaf is further included after the storing step. The manufacturing method according to the first or second aspect of the invention, wherein the storing step is performed at room temperature to 70 ° C, and the period is one week or longer. The manufacturing method according to any one of claims 1 to 3, wherein the storing step is performed under a sealed condition. The manufacturing method according to any one of claims 1 to 4, wherein the smoking treatment is performed by a cold smoking method. A tobacco product comprising the tobacco material produced by the production method according to any one of claims 1 to 5.