title: Isolation and characterization of a new ginsenoside from the fresh root of Panax Ginseng.
abstract: A new saponin, malonylginsenoside Ra3, was isolated from the fresh root of Panax ginseng, along with four known ginsenosides. The new compound was identified as (20S)-protopanaxadiol-3-O-(6-O-malonyl-beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranoside-20-O-beta-D-xylopyranosyl(1-->3)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside on the basis of extensive 1D and 2D NMR as well as HRESI-MS spectroscopic data analysis.
authors.affiliation: Institute of Agricultural Modernization, Jilin Agricultural University, Changchun, China. ccyuan@yahoo.com
authors.forename: Chang-Chun
authors.initials: CC
authors.lastname: Ruan
authors.forename: Zhi
authors.initials: Z
authors.lastname: Liu
authors.forename: Xiang
authors.initials: X
authors.lastname: Li
authors.forename: Xia
authors.initials: X
authors.lastname: Liu
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Wang
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Pan
authors.forename: Yi-Nan
authors.initials: YN
authors.lastname: Zheng
authors.forename: Guang-Zhi
authors.initials: GZ
authors.lastname: Sun
authors.forename: Yan-Sheng
authors.initials: YS
authors.lastname: Zhang
authors.forename: Lian-Xue
authors.initials: LX
authors.lastname: Zhang
mesh_terms: D036145:Ginsenosides / Q000737:chemistry* / Q000302:isolation & purification; D005894:Panax / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D036145:Ginsenosides; D012503:Saponins; C551079:malonylginsenoside Ra3