title: Chemical constituents from seeds of Panax ginseng: structure of new dammarane-type triterpene ketone, panaxadione, and hplc comparisons of seeds and flesh.
abstract: A new dammarane-type triterpene ketone, panaxadione, was isolated from the seeds of Panax ginseng C. A. MEYER (Araliaceae) together with two dammarane-type and lupane-type triterpenes, an aromatic oligoglycoside, three sterol glycosides, and three dammarane-type triterpene oligoglycosides (ginsenosides Rd, Re, and Rg(2)). The structure of a new compound was elucidated on the basis of physicochemical evidence. The relative contents of major ginsenosides in the seeds were compared with those of the flesh parts of young and mature fruits.
authors.affiliation: Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8412, Japan.
authors.forename: Sachiko
authors.initials: S
authors.lastname: Sugimoto
authors.forename: Seikou
authors.initials: S
authors.lastname: Nakamura
authors.forename: Hisashi
authors.initials: H
authors.lastname: Matsuda
authors.forename: Niichiro
authors.initials: N
authors.lastname: Kitagawa
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yoshikawa
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry*; D036145:Ginsenosides / Q000737:chemistry; D005894:Panax / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D000097669:Dammaranes
chemical_list: D036145:Ginsenosides; D014315:Triterpenes; D000097669:Dammaranes; C539542:panaxadione