METHOD FOR OBTAINING EXTRACTS FROM MEDICINAL PLANT RAW MATERIALS Russian patent published in 2023 - IPC A61K36/00 B01D11/02 

FIELD: pharmaceutical industry; biotechnology.

SUBSTANCE: method for obtaining extracts from medicinal plants is proposed, including grinding of dry plants materials to a particle size of 0.5–1 mm, which is then poured with a 30–60% ethanol solution in a ratio of 1:10 and left in a dark place for 4 hours at room temperature, then re-poured with the same volume of 30–60% ethanol solution and left for 20 hours in a dark place at room temperature, the resulting alcoholic extract is filtered, homogenized, and ethanol is evaporated from the alcoholic extract under low pressure on a rotary evaporator until complete distillation.

EFFECT: reduction in the consumption of ethyl alcohol and its use for re-extraction.

1 cl, 2 ex