METHOD FOR PREPARING OF BIOLOGICALLY ACTIVE EXTRACT Russian patent published in 1995 - IPC

FIELD: chemical and pharmaceutical industry. SUBSTANCE: liquid wastes of production of allapinine is extracted three times with the help of chloroform, chloroform being separated and washed to neutral reaction. Said wastes are prepared during production of allapinine of aconite rhizome. The process is followed by evaporation. Thus prepared boiled down concentrate or resin wastes of preparing allapinine of above ground part of aconite are treated by 98 ethanol. Thus prepared extract is allowed to stand, supernatant liquid being decanted and filtered. EFFECT: simplifies the method. 5 tbl