Dorsamin-A鈥檚, Glycerolipids Carrying a Dehydrophenylalanine Ester Moiety from the Seed-Eating Larvae of the Bruchid Beetle Bruchidius dorsalis
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- 作者：Yayoi Hirose ; Emi Ohta ; Yasushi Kawai ; Shinji Ohta
- 刊名：Journal of Natural Products
- 出版年：2013
- 出版时间：April 26, 2013
- 年：2013
- 卷：76
- 期：4
- 页码：554-558
- 全文大小：227K
- 年卷期：v.76,no.4(April 26, 2013)
- ISSN：1520-6025
文摘
Using a TLC autographic assay for radical-scavenging activity with the ABTS radical, the presence of lipophilic antioxidants in the larvae of the wild bruchid seed beetle Bruchidius dorsalis was detected. Assay-guided fractionation of the CHCl3-soluble fraction of the larvae resulted in the isolation of new glycerolipids, designated dorsamin-A763, -A737, -A765, -A739, and -A767, comprising 1,2-diacyl-sn-glycero-3-dehydrophenylalanine ester structural units. The ABTS radical scavenging activity of the dorsamin-A鈥檚 was comparable with or stronger than that of Trolox.