CN106858716B - Method for preparing tobacco aroma component by subcritical extraction and application of tobacco aroma component in cigarettes - Google Patents

Abstract

The invention discloses a preparation method of a cigarette filter stick additive, which takes tobacco leaves as raw materials and comprises the following steps of (1) preparing the raw materials: drying tobacco leaves at 50-80 ℃, and crushing to 50-100 meshes; (2) subcritical extraction: extracting the tobacco powder crushed in the step (1) by using dimethyl ether as an extracting agent and glycerol triacetate as an entrainer at the temperature of 0-50 ℃ and under the pressure of 0.5-3.0 MPa; (3) preparation of the filter stick additive: and (3) recovering the dimethyl ether obtained in the step (2), and obtaining the glyceryl triacetate solution containing the tobacco leaf extract, namely the cigarette filter stick additive. The invention also discloses application of the cigarette filter stick additive obtained by the preparation method in cigarette products.

Description

Method for preparing tobacco aroma component by subcritical extraction and application of tobacco aroma component in cigarettes

Technical Field

The invention belongs to the technical field of cigarettes, and particularly relates to a method for preparing herbal cigarette aroma components by subcritical extraction and application of the herbal cigarette aroma components in cigarettes.

Background

Although the tobacco is widely accepted as harmful to health, the tobacco still has strong attraction to thousands of consumers, and besides nicotine addiction, abundant aromatic substances in the tobacco play an important role.

Disclosure of Invention

The invention aims to provide a preparation method for extracting tobacco aroma components by subcritical extraction, which is simple in operation and suitable for large-scale production, and the method is added into a cigarette filter rod in the process of filter tip forming, so that the aroma quality of cigarette smoke is effectively improved, the miscellaneous gas and irritation are reduced, and the original aroma of tobacco is highlighted.

The percentages stated in the present invention are, unless otherwise stated, percentages by mass.

The purpose of the invention is realized by the following technical scheme.

The invention provides a preparation method of a cigarette filter stick additive, which is characterized by comprising the following steps: the cigarette filter stick additive takes tobacco leaves as raw materials and adopts the following steps:

(1) preparing raw materials: drying tobacco leaves at 50-80 ℃, and crushing to 50-100 meshes;

(2) subcritical extraction: extracting the tobacco powder crushed in the step (1) by using dimethyl ether as an extracting agent and glycerol triacetate as an entrainer at the temperature of 0-50 ℃ and under the pressure of 0.5-3.0 MPa;

(3) preparation of the filter stick additive: and (3) removing the dimethyl ether in the step (2) to obtain a glyceryl triacetate solution containing the tobacco extract, namely the cigarette filter stick additive.

Preferably, the method further comprises the following steps:

(4) and (4) placing the glycerol triacetate solution containing the tobacco leaf extract obtained in the step (3) at the temperature of-10 to-20 ℃ for 5 to 10 hours, and filtering and separating the obtained clear liquid to refine the cigarette filter additive.

Preferably, the mass of the dimethyl ether is 5-15 times of that of tobacco leaves, and the mass of the glyceryl triacetate is 1-5 times of that of the tobacco leaves.

The second aspect of the invention provides the application of the cigarette filter stick additive obtained by the preparation method, and the application of the cigarette filter stick additive added into a cigarette filter stick can improve the aroma quality of cigarette smoke, reduce miscellaneous gas and irritation and highlight the original aroma of tobacco.

Preferably, the obtained cigarette filter stick additive is diluted by 5-20 times with glyceryl triacetate and then added into a filter stick tow, and the mass of the diluted cigarette filter stick additive is 7-8% of that of the tow.

The invention has the advantages of

1. The method adopts the glyceryl triacetate as the entrainer, and because the glyceryl triacetate is the most commonly used plasticizer in the cigarette filter forming, the glyceryl triacetate in the preparation method plays a dual role, and simultaneously, the additional step of evaporating liquid to obtain a solid additive and dissolving the solid additive in the liquid during application is omitted, so that the preparation method has the advantages of simple process, lower cost and easy realization in industry.

2. The tobacco extract-containing tobacco extract can be added into a cigarette filter stick to obviously improve the aroma quality and quantity of cigarette smoke, obviously reduce miscellaneous gas and irritation, and more highlight the original aroma of tobacco to ensure full aroma. Therefore, the tobacco extract can meet the requirements of reducing tar and harm of cigarettes and improving the smoking comfort of the cigarettes when being added into the cigarette filter stick, and provides a satisfactory product for consumers.

3. The additive for the cigarette filter stick is frozen and placed for 5-10 hours at the temperature of-10 to-20 ℃, and other solid impurities can be removed from the clear liquid obtained by filtering and separating, so that the performance of the additive for the cigarette filter stick is more outstanding.

Drawings

None.

Detailed Description

The invention is further illustrated with reference to the following examples, without however restricting the scope of the invention thereto. The percentages stated in the present invention are, unless otherwise stated, percentages by mass.

Example 1

The tobacco leaf is Yuxi Hongda B2F, and the tobacco leaf sample is dried at 70 deg.C and pulverized to 80 mesh. Taking pulverized tobacco powder, performing subcritical extraction at 30 deg.C and 2.5Mpa with dimethyl ether as subcritical extractant and glyceryl triacetate as entrainer; wherein the amount of the extractant dimethyl ether is 10 times of the weight of the smoke. The amount of the entrainer glyceryl triacetate is 4 times of the weight of the tobacco. And after extraction is finished, the extraction mixed liquor enters a separation tank, and the glyceryl triacetate extract rich in tobacco fragrance components can be obtained after the extraction solvent is separated by the decompression evaporation principle. And (3) diluting the glycerol triacetate extract rich in the tobacco fragrance components by 10 times with glycerol triacetate after recovering dimethyl ether, fully dissolving the glycerol triacetate extract, cooling to room temperature, transferring to a refrigerator at the temperature of-15 ℃ for freezing for 10 hours, filtering and separating clear liquid, wherein the clear liquid can be used as a plasticizer for cigarette filter sticks. In the process of forming the cigarette filter stick, the additive is added into the cigarette filter stick according to 7.5 percent of the weight of the tows; then the filter tip added with the additive is made into cigarette. Sensory evaluation was performed on the cigarette samples, and the evaluation results are shown in table 1.

Example 2

The tobacco leaf used is big reason K326, and the tobacco leaf sample is dried at 75 ℃ and crushed to 90 meshes. Taking the pulverized tobacco powder, performing subcritical extraction at 25 deg.C and 2.8Mpa with dimethyl ether as subcritical extractant and glyceryl triacetate as entrainer; wherein the amount of the extractant dimethyl ether is 12 times of the weight of the tobacco. The amount of the entrainer glyceryl triacetate is 5 times of the weight of the tobacco. And after extraction is finished, the extraction mixed liquor enters a separation tank, and the glyceryl triacetate extract rich in tobacco fragrance components can be obtained after the extraction solvent is separated by the decompression evaporation principle. And diluting the glycerol triacetate extract rich in the tobacco fragrance components after the dimethyl ether is recovered by 10 times with glycerol triacetate, fully dissolving the glycerol triacetate extract, cooling to room temperature, transferring to a refrigerator at the temperature of 18 ℃ below zero for freezing for 10 hours, filtering and separating clear liquid, wherein the clear liquid can be used as a plasticizer for cigarette filter sticks. In the process of forming the cigarette filter stick, the additive is added into the cigarette filter stick according to 7.8 percent of the weight of the tows; then the filter tip added with the additive is made into cigarette. Sensory evaluation was performed on the cigarette samples, and the evaluation results are shown in table 1.

Example 3

The tobacco leaf is Honghe Yunyan-87, and the tobacco leaf sample is dried at 78 deg.C and pulverized to 95 mesh. Taking the pulverized tobacco powder, performing subcritical extraction at 28 deg.C and 2.9Mpa with dimethyl ether as subcritical extractant and glyceryl triacetate as entrainer; wherein the amount of the extractant dimethyl ether is 15 times of the weight of the tobacco. The amount of the entrainer glyceryl triacetate is 5 times of the weight of the tobacco. And after extraction is finished, the extraction mixed liquor enters a separation tank, and the glyceryl triacetate extract rich in tobacco fragrance components can be obtained after the extraction solvent is separated by the decompression evaporation principle. And diluting the glycerol triacetate extract rich in the tobacco fragrance components after the dimethyl ether is recovered by 8 times with glycerol triacetate, fully dissolving the glycerol triacetate extract, cooling to room temperature, transferring to-20 ℃, standing for 8 hours, and centrifuging to separate clear liquid which can be used as a plasticizer for the cigarette filter stick. In the process of forming the cigarette filter stick, the additive is added into the cigarette filter stick according to 8.0 percent of the weight of the tows; then the filter tip added with the additive is made into cigarette. Sensory evaluation was performed on the cigarette samples, and the evaluation results are shown in table 1.

Example 4

The tobacco leaves are the Trijing Yunyan 210, and the tobacco leaf samples are dried at 72 ℃ and crushed to 75 meshes. Taking pulverized tobacco powder, performing subcritical extraction at 28 deg.C and 3.0Mpa with dimethyl ether as subcritical extractant and glyceryl triacetate as entrainer; wherein the amount of the extractant dimethyl ether is 12 times of the weight of the tobacco. The amount of the entrainer glyceryl triacetate is 5 times of the weight of the tobacco. And after extraction is finished, the extraction mixed liquor enters a separation tank, and the glyceryl triacetate extract rich in tobacco fragrance components can be obtained after the extraction solvent is separated by the decompression evaporation principle. And diluting the glycerol triacetate extract rich in the tobacco fragrance components after the dimethyl ether is recovered by 5 times with glycerol triacetate, fully dissolving the glycerol triacetate extract, cooling to room temperature, transferring to-15 ℃, standing for 10 hours, and centrifuging to separate clear liquid which can be used as a plasticizer for the cigarette filter stick. In the process of forming the cigarette filter stick, the additive is added into the cigarette filter stick according to 8.0 percent of the weight of the tows; then the filter tip added with the additive is made into cigarette. Sensory evaluation was performed on the cigarette samples, and the evaluation results are shown in table 1.

Example 5

The tobacco leaf is Chuxiong Yunyan 212, and the tobacco leaf sample is dried at 75 ℃ and crushed to 95 meshes. Taking pulverized tobacco powder, performing subcritical extraction at 26 deg.C and 3.0Mpa with dimethyl ether as subcritical extractant and glyceryl triacetate as entrainer; wherein the amount of the extractant dimethyl ether is 10 times of the weight of the tobacco. The amount of the entrainer glyceryl triacetate is 4 times of the weight of the tobacco. And after extraction is finished, the extraction mixed liquor enters a separation tank, and the glyceryl triacetate extract rich in tobacco fragrance components can be obtained after the extraction solvent is separated by the decompression evaporation principle. And diluting the glycerol triacetate extract rich in the tobacco fragrance components after the dimethyl ether is recovered by 10 times with glycerol triacetate, fully dissolving the glycerol triacetate extract, cooling to room temperature, transferring to-12 ℃, standing for 8 hours, and centrifuging to separate clear liquid which can be used as a plasticizer for the cigarette filter stick. In the process of forming the cigarette filter stick, the additive is added into the cigarette filter stick according to 8.0 percent of the weight of the tows; then the filter tip added with the additive is made into cigarette. Sensory evaluation was performed on the cigarette samples, and the evaluation results are shown in table 1.

The cigarette without the additive rich in the tobacco fragrance components is used as a blank control sample. The overall sensory test results obtained by comparative evaluations with the blank control are shown in table 1 below.

Table 1: sensory evaluation result of filter tip additive rich in tobacco aroma components

And (4) conclusion: the 5 materials can effectively improve the quality and the amount of aroma of cigarette smoke, obviously reduce miscellaneous gas and irritation, have more prominent essential aroma and full aroma of tobacco, and can be used as cigarette filter tip additives.

Claims (1)

1. A preparation method of a cigarette filter stick additive is characterized by comprising the following steps: the cigarette filter stick additive takes tobacco leaves as raw materials and adopts the following steps:

(1) preparing raw materials: drying tobacco leaves at 50-80 ℃, and crushing to 50-100 meshes;

(2) subcritical extraction: extracting the tobacco powder crushed in the step (1) by using dimethyl ether as an extracting agent and glycerol triacetate as an entrainer at the temperature of 25-30 ℃ and under the pressure of 2.5-3.0 MPa; the mass of the dimethyl ether is 5-15 times that of tobacco leaves, and the mass of the glyceryl triacetate is 4-5 times that of the tobacco leaves;

(3) preparation of the filter stick additive: removing the dimethyl ether in the step (2) to obtain a triacetin solution containing the tobacco extract, namely the cigarette filter stick additive;

(4) and (4) placing the glycerol triacetate solution containing the tobacco leaf extract obtained in the step (3) at the temperature of-10 to-20 ℃ for 5 to 10 hours, and filtering and separating the obtained clear liquid to refine the cigarette filter additive.