FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to chemical-pharmaceutical industry. Vitamins of group K are obtained from green tea by extraction with successive addition to raw material of isopropanole and bidistilled water in ultrasonic bath. Alternate passing of obtained extracts through sorbent, which contains layer of nickel acetyl acetonate is carried out. Desorption is carried out with hexane.
EFFECT: invention allows to increase output and quality of product.
2 ex, 3 tbl
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