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Antioxidant Constituents from Portulaca oleracea  

Choi, Bong-Rak (College of Pharmacy, Chungbuk National University,Bioland Ltd.)
Hong, Seong-Su (College of Pharmacy, Chungbuk National University)
Han, Xiang Hua (College of Pharmacy, Chungbuk National University)
Hwang, Ji-Sang (College of Pharmacy, Chungbuk National University)
Lee, Min-Hee (College of Pharmacy, Chungbuk National University,Crown Pharmaceutical Co. Ltd.)
Hur, Jae-Doo (Crown Pharmaceutical Co. Ltd.)
Hwang, Bang-Yeon (College of Pharmacy, Chungbuk National University)
Ro, Jai-Seup (College of Pharmacy, Chungbuk National University)
Publication Information
Natural Product Sciences / v.11, no.4, 2005 , pp. 229-232 More about this Journal
Abstract
The repeated column chromatographic separation of the EtOH extract of Portulaca oleracea afforded seven compounds. The structures of these isolates were identified as bergapten (1), umbelliferone (2), daidzein (3), genistein (4), protocatechuic acid (5), ferulic acid (6), and gallic acid (7) by the analysis of physico-chemical and spectral data. Their antioxidant effect on free radical scavenging was evaluated in the DPPH assay.
Keywords
Portulaca oleracea; Portulacaceae; DPPH assay; antioxidant effect;
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