Tobacco extract, extraction method and application

Abstract

The invention discloses a tobacco extract, an extracting method and application and belongs to the field of tobacco additives. The tobacco extract is extracted with the method including the following steps that firstly, propylene glycol is added into tobacco raw materials, and then baking is carried out after standing; secondly, smashing is carried out, and a solvent is added into powder materials for extraction; thirdly, extract liquid passes through an ultrafiltrtion membrane, penetrating liquid is obtained and subjected to reduced pressure distillation, and concentrate is obtained; fourthly, the concentrate is subjected to secondary separation with a molecule distillation method, light components are collected, and the tobacco extract is obtained. The extract contains rich megastigmatrienone, Damascone, neophytadiene, phenylcarbinol, phenethyl alcohol, farnesylacetone and pyrone and furanone aroma components, and the tobacco extract is thick in baking aroma and tobacco aroma, good in penetration, small in irritation and miscellaneous gas, high in satisfaction, capable of improving the smoking quality of cigarettes and providing a certain amount of nicotine to meet the physiological needs of consumers when used.

Description

technical field [0001] The invention relates to a tobacco extract, and also relates to an extraction method and application, belonging to the field of tobacco additives. Background technique [0002] Tobacco stems, the main veins of tobacco leaves, account for about 25% to 30% of the weight of tobacco leaves. my country is a big tobacco producing country, producing about hundreds of thousands of tons of tobacco stems every year. Among them, some tobacco stems are manufactured by expansion technology into expanded stems and added to the leaf group formula, and some tobacco stems and waste tobacco leaves (fragments, tobacco powder) are added with wood pulp as raw materials to make reconstituted tobacco leaves. Using a certain proportion of expanded cut stems and reconstituted tobacco leaves in the cigarette leaf group formula can reduce the tar release and increase the filling value of cigarettes. However, shredded stems and reconstituted tobacco leaves have heavy miscellane...

AI Technical Summary

Problems solved by technology

At present, most commercially available tobacco extracts are prepared by ethanol continuous extraction method, which has two major disadvantages: ① part of the natural aroma is lost during the extraction process, and the aroma of the product is weak; ② in addition to aroma components, there are also pectin in the product , protein, and hemicellulose substances, these substances will be cracked during the smoking process of cigarettes to produce some harmful components, and at the same time increase the irritation and miscellaneous gas of smoking, and affect the sensory quality (Song Peng. Microbial fermentation reduces harmful substances in cigarette smoke Composition and research on improving cigarette quality [D]. Xi'an: Northwest University, 2008.; Chi Jingji, et al. Correlation analysis between main chemical indicators of tobacco leaves and smoking quality [J]. Journal of Agricultural Sciences of Yanbian University, 2006, 28(3):208-210.)

However, when water is used as the extraction solvent, small and medium polar aroma components cannot be fully dissolved. On the contrary, components that are unfavorable to cigarette smoking such as pectin, protein, and polysaccharides are extracted, and the enzymatic hydrolysis is carried out under acidic conditions. Extraction with water under acidic conditions will lead to the loss of some acidic and neutral aroma components. Even if the column chromatography technology is used to separate and enrich the aroma components, the small and medium polar aroma components have been lost due to the previous extraction steps. The method prepared There are still deficiencies in tobacco extract, and the separation process of column chromatography is complicated and the operation is cumbersome

In addition, the invention patent of publication number CN104687241A uses shredded stems, low-grade shredded tobacco or other natural products as raw materials, sequentially extracts them with low, medium, and high polarity solvents, and then mixes and dissolves the extracted extracts with ethanol and / or propylene glycol to obtain improved stalks. Tobacco liquid of silk burning and smoking quality, in which low polar solvents such as petroleum ether, cyclohexane or n-hexane, medium polar solvents ether, acetone, dichloromethane or ethyl acetate, high polar solvents methanol or acetic acid, these Most of the solvents are volatile, flammable, and toxic solvents, which have high requirements for industrial production equipment and personnel, are difficult to operate, and have high extraction costs

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