| Literature DB >> 17624900 |
Changqing Wu1, Feng Chen, Xi Wang, Yonnie Wu, Meidui Dong, Guoqing He, Ronald D Galyean, Lilin He, Guohui Huang.
Abstract
Antioxidant polyphenolic acids in the medicinal herb feverfew (Tanacetum parthenium) were isolated through in vitro bioassay-orientated antioxidant tests in response to 1,1-diphenyl-2-picrylhydrazyl (DPPH*) free radical scavenging and Fe(2+)-chelating activities. Purification of the active compounds and their structural elucidation involved a variety of techniques including open-column chromatography, HPLC, GC-MS, LC-MS and NMR. Major compounds with potent DPPH* scavenging activities were characterised as 3,5-, 4,5- and 3,4-di-O-caffeoylquinic acids (DCQAs). This is the first report of DCQAs found in feverfew. Copyright (c) 2007 John Wiley & Sons, Ltd.Entities:
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Year: 2007 PMID： 17624900 DOI： 10.1002/pca.995
Source DB: PubMed Journal: Phytochem Anal ISSN： 0958-0344 Impact factor: 3.373