TOBACCO EXTRACT PRODUCTION METHOD Russian patent published in 2020 - IPC A24B15/24 

FIELD: tobacco industry.

SUBSTANCE: invention discloses a method of producing tobacco extract, involving: (a) contacting tobacco with solvent for extraction at first temperature and first pressure, which are selected so that solvent is supercritical, so that tobacco flavoring and / or aroma components are extracted from tobacco into solvent; (b) separating residual dry tobacco substances from the supercritical solvent for extraction containing tobacco components; (c) exposing the extraction solvent containing the tobacco components to those conditions in the reservoir wherein the solvent for extraction is subcritical in order to release the tobacco components from the extraction solvent; (d) contacting the residual dry tobacco substances with the extraction solvent at a second temperature and a second pressure, which are selected such that the solvent for extraction is supercritical such that nicotine is extracted from the tobacco into the extraction solvent, wherein second temperature and / or second pressure is higher than corresponding first temperature or first pressure; (e) separating dry tobacco substances from the supercritical solvent for extraction containing tobacco components; (f) subjecting the extraction solvent containing tobacco components to such conditions in the reservoir wherein the solvent for extraction is subcritical in order to release the tobacco components from the extraction solvent, wherein during step (f), the container comprises a trapping solvent which dissolves the tobacco components released from the solvent for extraction, and wherein the trapping solvent contains an aerosol-generating agent.

EFFECT: disclosed is a method for producing tobacco extract.

13 cl, 4 tbl