title: DPPH radical scavenging activity of two flavonol glycosides from Aconitum napellus sp. lusitanicum.
abstract: The DPPH radical scavenging activity of two flavonol glycosides obtained from ethanolic extracts of Aconitum napellus sp. lusitanicum was studied. The results showed a high DPPH antiradical activity of compound 1 (quercetin 3-O-(6-trans-caffeoyl)-beta-glucopyranosyl-(1-->2)-beta-glucopyranosyl-7-O-alpha-rhamnopyranoside) when compared with compound 2 (quercetin-3-sophoroside-7-rhamnopyranoside), rutin and ascorbic acid. The relationship between the caffeoyl and rhamnopyranoside groups in the flavonol glycosides structures and the DPPH antiradical activity was also discussed.
authors.affiliation: Facultad de Farmacia, Departamento de Biología Vegetal y Fisiología Vegetal, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez s/n, C. P. 38206, La Laguna, Tenerife, Spain. jcluis@ull.es
authors.forename: J C
authors.initials: JC
authors.lastname: Luis
authors.forename: F
authors.initials: F
authors.lastname: Valdés
authors.forename: R
authors.initials: R
authors.lastname: Martín
authors.forename: A J
authors.initials: AJ
authors.lastname: Carmona
authors.forename: Jesús G
authors.initials: JG
authors.lastname: Díaz
mesh_terms: D031841:Aconitum; D001713:Biphenyl Compounds; D044948:Flavonols / Q000737:chemistry / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology*; D006027:Glycosides / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D008517:Phytotherapy; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D001713:Biphenyl Compounds; D044948:Flavonols; D016166:Free Radical Scavengers; D006027:Glycosides; D010851:Picrates; D010936:Plant Extracts; C004931:1,1-diphenyl-2-picrylhydrazyl