title: New Flavonol Glycoside from the Leaves of Ventilago africana.
abstract: A new flavonol diglycoside, rhamnocitrin-3-O-α-L-rhamnopyranosyl-(1-->6)-β-D-galactopyranoside, was isolated from the leaves of Ventilago Africana, in addition to 11 known flavonoids. Their structures were determined by spectroscopic methods including 1D- and 2D-NMR, and HR-ESI-MS analysis. The isolated compounds were evaluated for their antioxidant activity by using DPPH radical-scavenging assay. Compounds 4, 7-9 have discrete to good antioxidant potential with EC50 values ranging from 20.9 to 40.4 µM, compared with ascorbic acid (EC50 60 µM) used as positive control.
authors.forename: Diane Patricia Apie
authors.initials: DP
authors.lastname: Gossan
authors.forename: Abdulmagid Alabdul
authors.initials: AA
authors.lastname: Magid
authors.forename: Philomène Akoua
authors.initials: PA
authors.lastname: Yao-Kouassib
authors.forename: Damien
authors.initials: D
authors.lastname: Le Faucheur
authors.forename: Antoine Ahibo
authors.initials: AA
authors.lastname: Coffy
authors.forename: Dominique
authors.initials: D
authors.lastname: Harakat
authors.forename: Laurence
authors.initials: L
authors.lastname: Voutquenne-Nazabadioko
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification; D044948:Flavonols / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D027823:Rhamnaceae / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D044948:Flavonols; D006027:Glycosides; D010936:Plant Extracts