Structural Determination and DPPH Radical-Scavenging Activity of Two Acylated Flavonoid Tetraglycosides in Oolong Tea (Camellia sinensis)
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概要
- 論文の詳細を見る
Two major acylated flavonoid tetraglycosides were isolated from the methanol extract of oolong tea. Their structures were elucidated by spectroscopic methods as quercetin 3-O-[2^G-(E)-coumaroyl-3^G-O-β-D-glucosyl-3^R-O-β-D-glucosylrutinoside] (1) and kaempferol 3-O-[2^G-(E)-coumaroyl-3G-O-β-D-glucosyl-3^R-O-β-D-glucosylrutinoside] (2). Compounds 1 and 2 exhibited scavenging activity against DPPH radical with EC_<50> values of 30.5 and 487.2μM, respectively.
- 社団法人日本薬学会の論文
- 2008-06-01
著者
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Chang Chi-I
Graduate Institute of Biotechnology, National Pingtung University of Science and Technology
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Chen Chiy-Rong
Department of Biological Science and Technology, Meiho Institute of Technology
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TZEN Jason
Graduate Institute of Agricultural Biotechnology National Chung-Hsing university
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Tzen Jason
Graduate Institute Of Biotechnology National Chung Hsing University
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Tzen Jason
Graduate Inst. Of Biotechnology National Chung Hsing Univ.
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LEE Viola
Graduate Institute of Biotechnology, National Chung Hsing University
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LIAO Yun-Wen
Department of Food Science, National Pingtung University of Science and Technology
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Lee Viola
Graduate Institute Of Biotechnology National Chung Hsing University
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Chang Chi-i
Graduate Inst. Of Biotechnology National Pingtung Univ. Of Sci. And Technol.
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Chen Chiy-rong
Department Of Biological Science And Technology Meiho Institute Of Technology
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