METHOD FOR BETULIN PRODUCTION Russian patent published in 2017 - IPC C07J63/00

Abstract RU 2623220 C1

FIELD: biotechnology.

SUBSTANCE: invention relates to a process for betulin preparation from birch bark, comprising bark grinding, extraction with alcohol, solution separation with subsequent removal of the solvent therefrom, wherein isopropyl alcohol heated to 75°C is added to the ground bark at a ratio of alcohol:elm 5:1, and the mixture is further sonicated at 75-82°C for 1-1.5 hours.

EFFECT: new method for betulin production from birch bark with the betulin content in the birch bark extract is 70 to 95 percent.

2 cl, 2 ex

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RU 2 623 220 C1

Authors

Babin Vladislav Gennadevich

Kalyuzhnyj Mikhail Mikhajlovich

Dates

2017-06-23—Published

2016-03-24—Filed