FIELD: pharmacology.
SUBSTANCE: method including unmilled sunflower husks washing with water, drying, grinding, extraction with sodium hydroxide solution, extract separation from raw material by pressing in a filter press, resulting extract acidifying to adjust the pH to 1-2, melanin flakes separation by filtering, drying, while the washed, unmilled sunflower husk is treated with an excess of 5% hydrochloric acid solution with weak boiling, thenwashed with water to adjust the pH of the mixture to a neutral value, and extraction is performed in a microwave field, under certain conditions.
EFFECT: purified melanins that do not contain impurities, with high yield.
1 tbl, 10 ex
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