| 摘要 |
FIELD: chemistry.SUBSTANCE: method of obtaining melanin from chaga, includes addition of 25% solution of hydrochloric acid to a water extract of chaga, separation of the obtained melanin sediment, addition to the sediment of petroleum-ether, mixing until a mixture of a homogeneous consistency is obtained, the obtained mixture is frozen, after the mixture defrosting a layer of an organic extract is removed, and a sediment of melanin is separated from the water layer and dried under the specified conditions.EFFECT: method makes it possible to reduce a quantity of sol substances in melanin without changing its biological activity.1 tbl, 4 ex |
