UNIVERSITY OF PRETORIA;UNIVERSITY OF KWAZULU-NATAL
发明人:
Marco Nuno De Canha,Namrita Lall,Ahmed Hussein,Elizabeth Mogapi,lndres Moodley
申请号：
US14400645
公开号：
US20150118337A1
申请日:
2013.05.17
申请国别(地区):
US
年份:
2015
代理人:
摘要：
This invention relates to the isolation, and use of a plant extract in the treatment of skin hyper-pigmentation. More particularly, this invention relates to the isolation of a tyrosinase inhibitor in an extract of plant material from the Greyia radlkoferi (G. radlkoferi) plant, the extract including 5,7-dihidroxyflavone[(2S)-pinocembrin]； 2′, 6′-dihydroxy-4′-methoxydihydrochalcone； 2′,4′,6′-trihydroxyhydrochalcone； 3,5,7-trihydroxyflavone and 4′,5′7-thhydroxyisoflavone.
