| Literature DB >> 9463940 |
P Basnet1, T Matsuno, R Neidlein.
Abstract
We evaluated free radical scavenging activity of the water, methanol and chloroform extracts of propolis in 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical and xanthine-xanthine oxidase (XOD) generated superoxide anion assay systems. The free radical scavenging activity guided fractionation and chemical analysis led to the isolation of a new compound, propol (3-[4-hydroxy-3-(3-oxo-but-1-enyl)-phenyl]-acrylic acid) from the water extract, which was more potent than most common antioxidants such as vitamin C and vitamin E (alpha-tocopherol) in these assay systems.Entities:
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Year: 1997 PMID： 9463940 DOI： 10.1515/znc-1997-11-1217
Source DB: PubMed Journal: Z Naturforsch C J Biosci ISSN： 0341-0382