RU2289994C1 - Tobacco expanding method - Google Patents

Abstract

FIELD: production of aromatized tobacco with increased volume.

SUBSTANCE: method involves extracting coriander with the use of non-polar liquefied gas and separating miscella; moistening cut tobacco and impregnating with separated miscella, and simultaneously increasing pressure; thereafter, relieving pressure to atmospheric pressure value; drying tobacco for obtaining of base product.

EFFECT: increased efficiency in producing of aromatized tobacco with increased volume.

Description

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

A known method of expanding 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 expanding tobacco, involving the impregnation of cut tobacco with a mixture of non-polar liquefied gases with a simultaneous increase in pressure and depressurization to obtain the target product (Mozhaeva E.Yu. Development of technology for gas-liquid processing of tobacco raw materials. Abstract of thesis. , 2001, p. 17-20).

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

Closest to the proposed method is the expansion of tobacco, which involves impregnating the cut tobacco with liquid carbon dioxide while increasing the pressure, depressurizing the atmosphere and adding flavoring to obtain the target 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 in that the method of expanding tobacco involves extracting the coriander with non-polar liquefied gas with separation of the 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.

The coriander is 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 ratio, and the miscell is separated according to the traditional technology (Mikanba V.T. Carbon dioxide extracts. - Sukhumi: Alashara, 1989, p.26-28).

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 tank 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, occurs. 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. Doctor of Technical Sciences - 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 of expanding tobacco, comprising extracting coriander with non-polar liquefied gas with miscella separation, moistening the cut tobacco, impregnating the separated miscella with simultaneous increase in pressure, depressurizing to atmospheric pressure and drying to obtain the target product.