红海榄茎中的抗氧化黄烷-3-醇糖苷
Antioxidative flavan-3-ol glycosides from stems of Rhizophora stylosa.
作者信息
Takara Kensaku, Kuniyoshi Ayako, Wada Koji, Kinjyo Kazuhiko, Iwasaki Hironori
机构信息
Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan.
出版信息
Biosci Biotechnol Biochem. 2008 Aug;72(8):2191-4. doi: 10.1271/bbb.80065. Epub 2008 Aug 7.
Two flavan-3-ol glycosides together with seven flavan-3-ols were isolated from stems of the mangrove plant, Rhizophora stylosa. Their structures were established as glabraoside A (7) and glabraoside B (8) by spectroscopic and chemical methods. The antioxidative activity of these isolated compounds evaluated by the diphenylpicrylhydrazyl (DPPH) radical scavenging reaction was higher than that of L-ascorbic acid.
从红树植物红海榄的茎中分离出两种黄烷-3-醇糖苷和七种黄烷-3-醇。通过光谱和化学方法确定它们的结构为光甘草定苷A（7）和光甘草定苷B（8）。通过二苯基苦味酰基自由基（DPPH）清除反应评估，这些分离化合物的抗氧化活性高于L-抗坏血酸。
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