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首页> 外文期刊>Pest Management Science >Insect growth inhibition,antifeedant and antifungal activity of compunds isolated/derived from Zingiber officinale Roscoe 9ginger)rhizomes
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Insect growth inhibition,antifeedant and antifungal activity of compunds isolated/derived from Zingiber officinale Roscoe 9ginger)rhizomes

机译：姜/生姜9根茎中分离/衍生的化合物对昆虫的生长抑制，抗饲料和抗真菌活性

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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 [6J-gingerol was obtained by preparative TLC. Naturally occurring [611-dehydroshogaol was synthesised following condensation of dehydrozingerone with hexanal, whereas zingerone and 3~hydroxy~1~(4~hydroxy-3-methoXyPhenYl)butane were obtained by hydro-genation of dehydrozingerone with 10% PdJC. The structures of the compounds were established by ‘H NMR, ‘3C NMR and mass (El-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 3.55mg ml ‘) while dehydrozingerone imparted maximum antifungal activity (EC50 86.49mg litre’).
机译：姜黄的新鲜根茎（姜）经过蒸汽蒸馏后，得到姜油，姜黄素是其中的主要成分。从其二乙醚提取物中获得了热不稳定的富含姜二烯的馏分。姜油树脂的柱色谱提供了一个馏分，可通过制备TLC从中获得[6J-姜油醇。脱氢姜油酮与己醛缩合后可合成天然的[611-脱氢樟脑醇]，而脱氢姜油酮与10％PdJC加氢可制得姜油酮和3-羟基-1〜（4-羟基-3-甲氧基苯酚）丁烷。化合物的结构通过1 H NMR，3 C NMR和质谱（El-MS和ES-MS）确定。这些测试化合物表现出中等的昆虫生长调节剂（IGR）和对斜螺螺的拒食活性，以及​​对茄红枯菌的显着抗真菌活性。在各种化合物中，[6]-脱氢松果酚表现出最大的IGR活性（EC50为3.55mg / ml），而脱氢姜油酮则具有最大的抗真菌活性（EC50为86.49mg /升）。

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