METHOD FOR COMPLEX SYNTHESIS OF BIOLOGICALLY ACTIVE SUBSTANCES FROM ALCOHOL WASTES Russian patent published in 2010 - IPC A23L1/30 C12F3/10 A23L1/524 

FIELD: chemistry.

SUBSTANCE: invention relates to pharmaceutical and alcohol industry and pertains to a method for preparing a complex of biologically active substances (BAS) from alcohol wastes (distillers' spent grains). The method of producing biologically active substances from alcohol wastes is realised by separating distiller's spent grains into a liquid and a solid fraction. The liquid fraction is filtered, evaporated to obtain a concentrate with density of 1.480 g/ml and then treated with acetone in volume ratio concentrate : acetone equal to 1:3. The precipitate is filtered, washed with acetone three times and then dried. The solid phase is extracted through maceration with 1% solution of ammonium oxalate in weight-volume ratio raw material : extract equal to 1:10 at 70°C for 3 hours. The extract is filtered, evaporated to obtain a concentrate with density of 1.480 g/ml and then treated with 95% alcohol in volume ratio concentrate : alcohol equal to 1:2. The precipitate is filtered, washed, dried and the ground.

EFFECT: invention provides virtually complete extraction of a complex of biologically active substances from liquid and solid fractions of distillers' spent grains, enables to considerably cut on amount of wastes, increases their degree of purity and protection of air and water basins.

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