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DOI: 10.1055/s-2000-8544
A New Acylated Flavonol Glycoside and Antioxidant Effects of Hedyotis diffusa
Publication History
Publication Date:
31 December 2000 (online)
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Abstract
A study on the bioactive principles of Hedyotis diffusa Willd., led to the isolation of a new acyl flavonol di-glycoside which was characterized as kaempferol 3-O[2″-O-(E-6′′′-O-feruloyl)-β-D-glucopyranosyl]-β-D-galactopyranoside by spectral and chemical methods from the methanolic extract. In addition, three known flavonol glycosides and six known iridoid glycosides were also obtained. The above-mentioned glycosides were tested for antioxidant effects on xanthine oxidase inhibition, xanthine-xanthine oxidase cytochrome c and TBA-MDA systems.
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Prof. Dr. C. C. Lin
College of Pharmacy Kaohsiung Medical University
Kaohsiung
Taiwan 807 R.O.C.
Email: aalin@ms24.hinet.net
Phone: +886 7 3227508