CN103445283B - Processing method of tobacco raw materials for heating non-combustion tobacco products - Google Patents

Abstract

A method for processing tobacco raw materials of heat-not-burn tobacco products, which includes the following steps in sequence: heating treatment: adjusting the moisture content of tobacco raw materials, 100-300? Heat treatment at 0.5~8? h; cooling at room temperature; aromatization treatment: at a temperature of 22? After equilibrating for 24-120 hours in an environment with a relative humidity of 60% ℃, apply glycoside flavor precursors to it, and place it for 48-120? h, to ensure that the raw material fully absorbs the flavor precursor; adding treatment: after the tobacco raw material is flavored, add polyol to it, and place it in a sealed state for 48-120 hours to ensure that the tobacco raw material fully absorbs the polyol. Then equilibrate for 24-120 hours to obtain tobacco raw materials suitable for heating non-combustion tobacco products. The smoke release performance of the treated tobacco raw material in the heating non-combustion state is obviously improved, the sensory quality of the released smoke is obviously improved, and it has good satisfaction and comfort.

Description

A method for processing tobacco raw materials of heat-not-burn tobacco products

technical field

The invention belongs to the technical field of tobacco, and in particular relates to a method for processing tobacco raw materials of heating non-combustion tobacco products.

Background technique

Heat-not-burn tobacco products are a new type of tobacco products, which can cause the contained tobacco materials to generate smoke for consumers to smoke in a non-combustible state through heating. Compared with traditional cigarettes, sidestream smoke and some harmful substances release was significantly reduced. Heat-not-burn tobacco products were first launched by Reynolds Tobacco Company. Although this type of product has not been widely recognized by the market, due to the continuous increase in global tobacco control efforts and its obvious potential in reducing environmental pollution and smoking health risks The international tobacco field has always believed that this type of product is an important direction for the development of tobacco products in the future.

The Chinese patents CN88101196 and 89108679.X applied by Reynolds Tobacco Company and the Chinese patents CN02826243.3 and CN200980159916.9 applied by Japan Tobacco Company disclose the product composition and related technologies of carbon heating type heat-not-burn tobacco products. The Chinese patents CN94102530.6, CN96194107.3, CN96195594.5, CN200380102439.5 and CN200580036230.2 applied by Philip Morris Tobacco Company disclose the product composition and related technologies of electric heating non-combustion tobacco products. However, through the analysis of existing products, it is found that the release of CO in the mainstream smoke of carbon-heated HNB tobacco products is high, and the sensory quality of the smoke has not yet reached a satisfactory level; Type tobacco products can effectively release smoke with the characteristic aroma of tobacco when heated. After heating, the tobacco material has obvious carbonization phenomenon, but also burns to a certain extent, indicating that the existing products need to be further optimized in terms of flame retardancy. Only when the tobacco material is heated and not burned can it release smoke, and the sensory quality of the smoke needs to be further improved.

Therefore, in order to further improve the smoke quality of heat-not-burn tobacco products, on the one hand, it is necessary to optimize the heating components and their control parameters; The smoke release performance and smoke quality of the cigarette core in the heat-not-combustion state are also crucial.

Contents of the invention

The object of the present invention is just to provide a kind of treatment method of tobacco raw material in view of the above-mentioned prior art situation, after being processed by this method, the smoke release performance of tobacco raw material in the heating non-combustion state is obviously improved, and the smoke release performance of the released smoke is The sensory quality is significantly improved.

The purpose of the present invention is achieved through the following technical solutions:

A method for processing tobacco raw materials of heat-not-burn tobacco products, comprising the following steps in sequence:

(1) Heat treatment of tobacco raw materials: After adjusting the moisture content of tobacco raw materials to 10% to 25%, place them in a closed system and heat them at 100 ℃ to 300 ℃ for 0.5 h to 8 h; after heating, keep the airtight conditions Cool at room temperature for 12 to 48 hours to obtain heat-treated tobacco raw materials. The tobacco raw materials used can be one or a mixture of different types of tobacco leaves such as flue-cured tobacco, burley tobacco, oriental tobacco.

(2) Flavoring treatment of tobacco raw materials: equilibrate the heated tobacco raw materials in an environment with a temperature of 22 °C and a relative humidity of 60% for 24 h to 120 h, and then apply glycosides with a mass ratio of 50 ppm to 1000 ppm It is like a fragrance precursor, and placed in a sealed state for 48 h to 120 h to ensure that the raw materials can fully absorb the fragrance precursor. The glycoside flavor precursors used may be one or a combination of 3-oxoionol glucoside, ionol glucoside, phenylethyl alcohol glucoside, menthol glucoside, geraniol glucoside and the like.

(3) Adding treatment of tobacco raw materials: After the tobacco raw materials are flavored, polyols with a mass ratio of 5% to 20% are added to them, and placed in a sealed state for 48 h to 120 h to ensure that the tobacco raw materials are fully saturated with polyols. absorb. Then the added tobacco raw material was equilibrated in an environment with a temperature of 22 °C and a relative humidity of 60% for 24 h to 120 h to obtain a tobacco raw material suitable for heating non-combustion tobacco products. The polyhydric alcohol used can be one or a mixture of propylene glycol and glycerin.

The advantages of the present invention are:

1. Heat treatment of tobacco raw materials within a certain temperature range can have a good curing effect and increase the content of aroma substances in tobacco raw materials. At the same time, heat treatment will also lead to partial degradation of macromolecular substances such as polysaccharides in tobacco raw materials, and The entire treatment process is carried out in a closed system, and since the substances volatilized by heating will be re-adsorbed by the tobacco raw materials during the cooling process, no loss will occur. Therefore, the heat treatment is beneficial to improve the smoke release performance of the tobacco raw material in the heat-not-combustion state and the sensory quality of the released smoke.

2. The glycoside flavor precursor used in the invention has good stability at normal temperature, and when the temperature is higher than 200 DEG C, the glycosidic bond breaks to generate corresponding flavor substances. The flavoring treatment is carried out on tobacco raw materials by using such substances, and the flavoring substances can be released stably in a heating and non-combustion state, thereby improving the sensory quality of the released smoke. In particular, the thermal cracking of the adopted 3-oxoionol glucoside can stably release the tobacco-characteristic aroma substance mastigtrienone, and obviously strengthen the tobacco characteristics of the released smoke.

3. Adding propylene glycol or glycerol to the tobacco raw material can enhance the smoke release performance of the tobacco raw material in the heated non-combustion state and increase the smoke concentration. It can also play a good role in flame retardancy, ensuring that the tobacco raw material releases smoke in a state of heating and non-combustion.

4. After the tobacco raw material is treated by the method of the present invention, the smoke release performance in the heat-not-burn state and the sensory quality of the released smoke are obviously improved, and the applicability in heat-not-burn tobacco products is obviously enhanced.

5. The operation process of the invention is simple, the cost is low, and it has good industrialization prospect.

Detailed ways

The present invention will be further described below in conjunction with embodiment:

Example 1

Weigh 100 g flue-cured tobacco shreds, humidify it to a moisture content of 15%, put it into a 500 mL stainless steel airtight high-pressure reaction vessel, then place the reaction vessel with shredded tobacco in a muffle furnace, and heat it at 180 °C for 2 h. After heating, the reaction vessel was taken out, kept in a closed state and cooled at room temperature for 24 hours, then the shredded tobacco was taken out and equilibrated in an environment with a temperature of 22 °C and a relative humidity of 60% for 72 hours. To the equilibrated heat-treated shredded tobacco, 3-oxionyl glucoside was applied at an addition rate of 100 ppm. After the flavored shredded tobacco was placed in a sealed state for 72 hours, propylene glycol was added to it at an additive amount of 10%, and placed in a sealed state for 72 hours again. It was then equilibrated for 72 hours in an environment with a temperature of 22 °C and a relative humidity of 60%, to obtain tobacco raw materials suitable for heating non-burning tobacco products.

Thermogravimetric analysis shows that the tobacco raw material will not burn obviously when heated at 300 ℃, and the thermal weight loss rate is 45%. The released smoke presents obvious characteristics of flue-cured tobacco style, with good satisfaction and comfort.

Example 2

Weigh 60 g shredded flue-cured tobacco, 20 g shredded Burley tobacco, and 20 g shredded oriental tobacco, mix them, and humidify them to a moisture content of 20%, then add them to a 500 mL stainless steel airtight high-pressure reaction vessel, and then place the reaction vessel containing shredded tobacco Heated at 220 °C for 1 h in a muffle furnace. After heating, the reaction vessel was taken out, kept in a closed state and cooled at room temperature for 36 hours, then the shredded tobacco was taken out and equilibrated in an environment with a temperature of 22 °C and a relative humidity of 60% for 96 hours. Add 3-oxoionol glucoside, phenylethyl alcohol glucoside and menthol glucoside to the equilibrated heat-treated shredded tobacco, all at 100 ppm. After the flavored shredded tobacco was placed in a sealed state for 96 hours, glycerol was added to it at an amount of 15%, and it was placed in a sealed state for 96 hours again. Then it was equilibrated for 96 hours in an environment with a temperature of 22 °C and a relative humidity of 60%, to obtain tobacco raw materials suitable for heating non-burning tobacco products.

Thermogravimetric analysis shows that the tobacco raw material will not burn obviously when heated at 300 °C, and the thermal weight loss rate is 51%. The smoke released presents an obvious hybrid style characteristic, with good satisfaction and comfort.

Claims (4)

1. heat a processing method for non-combustion-type tobacco goods tobacco material, it is characterized in that: comprise the following steps successively:

(1) heat: after the moisture of tobacco material being adjusted to 10 % ~ 25 %, be placed in enclosed system, at 100 DEG C ~ 300 DEG C, heat 0.5 h ~ 8 h; After heating terminates, keep airtight condition room temperature to cool 12 h ~ 48 h, obtain the tobacco material after heating;

(2) perfuming process: by the tobacco material after heating temperature 22 DEG C, after balancing 24 h ~ 120 h in the environment of relative humidity 60 %, apply the glucosides class fragrance precursor that addition is 50 ppm ~ 1000 ppm wherein, and place 48 h ~ 120 h in sealed states, ensure that raw material is to the abundant absorption of fragrance precursor;

(3) reinforced process: after the process of tobacco material perfuming, apply the polyalcohol of mass ratio 5 % ~ 20 % wherein, and place 48 h ~ 120 h in sealed states, ensure that tobacco material is to the abundant absorption of polyalcohol, then by the tobacco material after reinforced process temperature 22 DEG C, balance 24 h ~ 120 h in the environment of relative humidity 60 %, obtain the tobacco material being applicable to heat non-combustion-type tobacco goods.

2. the processing method of heating non-combustion-type tobacco goods tobacco material according to claim 1, is characterized in that: the tobacco material adopted is any one or a few mixing in flue-cured tobacco, burley tobaccos, Turkish tobaccos.

3. the processing method of heating non-combustion-type tobacco goods tobacco material according to claim 1, is characterized in that: the glucosides class fragrance precursor adopted is any one or a few the mixing in 3-oxo ionol glucoside, ionol glucoside, benzyl carbinol glucoside, menthol glucoside, geraniol glucoside.

4. the processing method of heating non-combustion-type tobacco goods tobacco material according to claim 1, is characterized in that: the polyalcohol adopted is the mixing of any one or two kinds of propane diols, glycerine.