GRAPE SEED EXTRACT AS TYROSINASE INHIBITOR

摘要

PURPOSE: A grape seed extract as tyrosinase inhibitor is provided, which shows strong anti-oxidation activity, so can be used as a cosmetic with functions of inhibition of melanin-production, prevention of skin aging, skin protection, and whitening; a medicine for freckles, flecks, spots or hyper pigmentation during pregnancy; an anti-oxidant for food. CONSTITUTION: The process for the preparation of grape seed extract as tyrosinase inhibitor comprises of: washing, drying and pulverizing grape seed; eliminating fat by hexane; extracting with shaking incubator after adding ethanol, methanol or acetone during less than 12hrs; concentrating the extracts under decompression using rotary evaporator at 50°C; and vacuum-drying to gain powdered grape seed extract.