Antioxidant activity of phlorotannins isolated from the brown alga Eisenia bicyclis

被引:146
作者
Nakamura, T
Nagayama, K
Uchida, K
Tanaka, R
机构
[1] Laboratory of Fisheries Technology, Faculty of Agriculture, Kyushu University, Hakozaki
关键词
antioxidant; phlorotannin; phloroglucinol; brown alga; Eisenia bicyclis; isolation; identification;
D O I
10.2331/fishsci.62.923
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Five antioxidative substances in the brown alga Eisenia bicyclis were isolated by silicic acid column chromatography and thin-layer chromatography. They were identified to be phloroglucinol and its polymers, namely eckol, phlorofucofuroeckol A, dieckol, and 8,8'-bieckol on the basis of spectroscopic evidence (IR, FABMS, and H-1 and C-13 NMR). Their potent antioxidant effect extended the induction time of autoxidation of methyl alpha-linolenate.
引用
收藏
页码:923 / 926
页数:4
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