title: Flavonoids from seeds of Camellia semiserrata Chi. and their estrogenic activity.
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.
authors.affiliation: College of Bioengineering, Dalian University, Dalian, Japan.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Wu
authors.forename: Ling
authors.initials: L
authors.lastname: Tang
authors.forename: Hongjing
authors.initials: H
authors.lastname: Lin
authors.forename: Yongqi
authors.initials: Y
authors.lastname: Wang
authors.forename: Baomin
authors.initials: B
authors.lastname: Feng
mesh_terms: D028244:Camellia / Q000737:chemistry*; D004967:Estrogens / Q000378:metabolism*; D005419:Flavonoids / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry; D020128:Inhibitory Concentration 50; D044949:Kaempferols; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D011994:Recombinant Proteins / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins / Q000235:genetics / Q000378:metabolism; D012639:Seeds / Q000737:chemistry*
chemical_list: D004967:Estrogens; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; D010936:Plant Extracts; D011994:Recombinant Proteins; D029701:Saccharomyces cerevisiae Proteins; C006552:kaempferol