RU2306030C1 - Method for producing of swelled tobacco - Google Patents

Abstract

FIELD: process for producing of aromatized tobacco having increased volume.

SUBSTANCE: method involves extracting mixture of dried cherry pomace and sweet bay using non-polar liquefied gas; separating miscella; moistening cut tobacco; impregnating with the use of separated miscella and simultaneously increasing pressure; reducing pressure to atmospheric pressure value; drying for obtaining of base product.

EFFECT: simplified process due to combining tobacco volume increasing and aromatizing procedures.

Description

The invention relates to a technology for the production of flavored tobacco with an increased volume.

A known method for the production of expanded tobacco, comprising impregnating moistened tobacco with liquid propane while increasing pressure, depressurizing and drying to obtain the target product (US 5469872, 11.28.1995).

There is a method of producing expanded tobacco, which impregnates cut tobacco with a mixture of non-polar liquefied gases while increasing pressure and depressurizing to obtain the target product (Mozhaeva E.Yu. Development of gas-liquid processing technology for tobacco raw materials. Abstract of thesis. KubGTU, 2001, pp. 17-20).

These methods do not provide for the possibility of flavoring tobacco.

Closest to the proposed method is the production of expanded tobacco, which involves impregnating the cut tobacco with liquid carbon dioxide while increasing pressure, depressurizing the atmosphere and introducing flavoring to obtain the desired product (Expanded Tobacco // World Tobacco, 1996, V.154, p. 58 -59).

The disadvantage of this method is the complexity of the technology.

The technical result of the invention is to simplify the technology by combining operations to increase the volume and flavoring of tobacco.

This result is achieved by the fact that the method of producing expanded tobacco involves extracting a mixture of dry cherry squeeze and noble laurel with non-polar liquefied gas with separation of miscella, moistening the cut tobacco, impregnating the separated miscella with a simultaneous increase in pressure, depressurizing to atmospheric pressure and drying to obtain the target product.

The method is implemented as follows.

Dry cherry pomace is mixed with noble laurel leaves, extracted with non-polar liquefied gas, in particular carbon dioxide, nitrous oxide, nitrogen, inert gases, saturated or unsaturated hydrocarbons containing up to 4 carbon atoms in the molecule, halogen derivatives of these hydrocarbons or mixtures of these substances in any combination and the ratio, and miscella is separated according to traditional technology (Mikanba V.T. Carbon dioxide extracts. - Sukhumi: Alashara, 1989, p. 26-28). The ratio of the mixed components is set by any necessary to obtain a given shade of aroma. In this specific yield of extractives from the mixture exceeds the specific yield of extractives by separate extraction of components by implementing coextraction effect not depending on the ratio of mixture components (GI Kas'yanov Theoretical basis CO ₂ -Handling vegetable raw materials -. M .: Rusoz, 1994, p. 48-49).

The cut tobacco is moistened to a moisture content of at least 13%, which provides sufficient tobacco elasticity for expansion (US 5469872, 11.28.1995). Moistened tobacco is loaded into a sealed container in which miscella is served. The pressure in the vessel automatically rises to a value corresponding to the saturated vapor pressure of the non-polar liquefied gas used at miscella temperature. The resulting mixture is incubated for a time sufficient for impregnating tobacco, which is determined by the known laws of mass transfer (Kosmodemyansky Yu.V. Processes and apparatuses of food production. A textbook for students of technical schools. - M .: Kolos, 1997, p.135-162). As a rule, it is no more than 15 s (US 5469872, 11.28.1995). In this case, the absorption of liquefied gas and saturation of the tobacco with extractive substances contained in the miscella, which provide the tobacco with an aroma, takes place. To achieve their desired content in tobacco, which is determined according to well-known recommendations (N.V. Puzdrova Theoretical justification and development of a system for assessing and regulating the quality of smoking products. Abstract of thesis, Ph.D. - Krasnodar: KubGTU - Pogarskaya Cigarette cigar factory ", 2004, p.15-16), according to the above regularities, the concentration of extractives in miscella and the phase ratio at the stages of extraction and impregnation are calculated.

After the impregnation is completed, the excess liquid phase is drained for reuse and the pressure in the vessel is vented to atmospheric pressure. In this case, non-polar liquefied gas is removed and approximately two-fold increase in the volume of tobacco is maintained while extractives from miscella are preserved in it. Then the tobacco is dried to a residual moisture content of less than 13% in accordance with known recommendations (US 5469872, 11.28.1995).

As a result, the tobacco obtained using the described technology has an increased volume and a predetermined aromatic content combined with the aroma of tobacco smoke (Vorobyeva L.N. Tobacco production technology. A manual for university students. - Rostov-on-Don: Publishing House of Don Donskoy Tobacco ", 2005, p. 53-56).

Thus, the proposed method allows to obtain flavored tobacco with an increased volume by a simplified technology that combines the operation of aromatization and increase the volume of tobacco.

Claims (1)

A method for producing expanded tobacco, which involves extracting a mixture of dry cherry squeeze and noble laurel with non-polar liquefied gas with separation of miscella, moistening the cut tobacco, impregnating the separated miscella with simultaneous increase in pressure, depressurizing to atmospheric and drying to obtain the target product.