Screening, determination and quantification of major antioxidants from Balanophora laxiflora flowers

Shang Tse Ho, Yu Tang Tung, Kai Chung Cheng, Jyh Horng Wu

研究成果: 雜誌貢獻文章同行評審

31 引文 斯高帕斯(Scopus)

摘要

In this study, antioxidant phytochemicals of Balanophora laxiflora flowers were detected by online HPLC-DPPH method. Accordingly, five phytochemicals including 1-O-(E)-caffeoyl-β-d-glucopyranose (1), 1-O-(E)-p-coumaroyl-β-d-glucopyranose (2), caffeic acid (3), 1,3-di-O-galloyl-4,6-(S)-hexahydroxydiphenoyl-β-d-glucopyranose (4), and 1-O-(E)-caffeoyl-4,6-(S)-hexahydroxydiphenoyl-β-d-glucopyranose (5) were isolated using the developed screening method. Of these, compounds 1 and 5 were found to be major bioactive phytochemicals, and their contents were determined to be 10.8 mg and 9.5 mg per gramme of crude extract, respectively. In addition, compared with (+)-catechin, a well-known antioxidant, compounds 4 and 5 exhibited stronger DPPH radical and superoxide radical scavenging activities than (+)-catechin. These results demonstrated that the flower extracts of B. laxiflora have excellent antioxidant activities and thus have great potential as a source for natural health products.
原文英語
頁(從 - 到)584-588
頁數5
期刊Food Chemistry
122
發行號3
DOIs
出版狀態已發佈 - 10月 1 2010
對外發佈

ASJC Scopus subject areas

  • 食品科學
  • 分析化學

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