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  • Title: Flavonoids from seeds of Camellia semiserrata Chi. and their estrogenic activity.
    Author: Wu X, Tang L, Lin H, Wang Y, Feng B.
    Journal: Biosci Biotechnol Biochem; 2008 Sep; 72(9):2428-31. PubMed ID: 18776671.
    Abstract:
    Two new flavonol glycosides and three known flavonoids were isolated from seeds of Camellia semiserrata Chi. The structures of these new flavonol glycosides were established as kaempferol 3-O-[(2'''''',3'''''',4''''''-triacetyl)-alpha-L-rhamnopyranosyl(1-->3)(2'''',4''''-diacetyl)-alpha-L-rhamnopyranosyl (1-->6)-beta-D-glucopyranoside] and kaempferol 3-O-[(3'''''',4''''''-diacetyl)-alpha-L-rhamnopyranosyl(1-->3)(2'''',4''''-diacetyl)-alpha-L-rhamnopyranosyl(1-->6)-beta-D-glucopyranoside] by spectroscopic methods. The estrogenic activity of these compounds was investigated by a recombinant yeast screening assay.
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