Insect growth inhibition, antifeedant and antifungal activity of compounds isolated/derived from Zingiber officinale Roscoe (ginger) rhizomes

被引:126
作者
Agarwal, M
Walia, S [1 ]
Dhingra, S
Khambay, BPS
机构
[1] Indian Agr Res Inst, Div Agr Chem, New Delhi 110012, India
[2] AFRC, Inst Arable Crops Res, Biol & Ecol Chem Dept, Harpenden AL5 2JQ, Herts, England
关键词
Zingiber officinale; gingerol; dehydrozingerone; dehydroshogaol; zingerone; insect growth inhibition; antifeedant; antifungal;
D O I
10.1002/ps.263
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Fresh rhizomes of Zingiber officinale (ginger), when subjected to steam distillation, yielded ginger oil in which curcumene was found to be the major constituent. The thermally labile zingiberene-rich fraction was obtained from its diethyl ether extract. Column chromatography of ginger oleoresin furnished a fraction from which [6]-gingerol was obtained by preparative TLC. Naturally occurring [6]-dehydroshogaol was synthesised following condensation of dehydrozingerone with hexanal, whereas zingerone and 3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)butane were obtained by hydrogenation of dehydrozingerone with 10% Pd/C. The structures of the compounds were established by H-1 NMR, C-13 NMR and mass (EI-MS and ES-MS) spectral analysis. The test compounds exhibited moderate insect growth regulatory (IGR) and antifeedant activity against Spilosoma obliqua, and significant antifungal activity against Rhizoctonia solani. Among the various compounds, [6]dehydroshogaol exhibited maximum IGR activity (EC50 3.55 mg ml(-1)) while dehydrozingerone imparted maximum antifungal activity (EC50 86.49 mg litre(-1)). (C) 2001 Society of Chemical Industry.
引用
收藏
页码:289 / 300
页数:12
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