Natural Antioxidants. II. Antioxidative Components Isolated from Seeds of Plantago asiatica LINNE

概要

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Anitioxidative componetns in the methoanol extract of seeds of Plantago asiatica L. were investigated by using our test method based on the air oxidation of linoleic acid. Geniposidic acid, an iridoid glucoside, was found to be the most potent antioxidative component. The 50% inhibitory concentration (IC_<50>) of geniposidic acid was 1.56×10^2% (thiobarbituric acid value), and this value was superior to that of dl-α-tocopherol (IC_<50> : 1.95×10^<-1>%). The antioxidative effects of other related iridoid glucosides (aucubin, geniposide, gardenoside) were also tested, but their activities were clearly weaker than that of geniposidic acid.
関西鍼灸大学の論文
1986-04-01