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Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
DPPH radical scavenging activity of two flavonol glycosides from Aconitum napellus sp. lusitanicum
1Facultad 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
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.
