Piperine analogues in a hydrophobic fraction from Piper ribersoides (Piperaceae) and its insect antifeedant activity
Piperine analogues in a hydrophobic fraction from Piper ribersoides (Piperaceae) and its insect antifeedant activity
复制标题
胡椒科（Piperaceae）疏水组分中的胡椒碱类似物及其昆虫拒食活性
DOI：
10.1007/s13355-013-0204-4
复制
发表时间：
2013
影响因子：
1.3
通讯作者：
M. Morimoto
中科院分区：
文献类型：
--
作者：
T. Kitayama;K. Yasuda;T. Kihara;S. Sawada; M. Ito;H. Fukumoto;M. Morimoto
派珀ribersoidesWall。（胡椒科），在当地语言中被称为“Khua Sa khan”，主要生长在老挝。这种植物在老挝被用作食物，但没有关于其代谢产物的报道。粉碎的茎浸泡在甲醇中。乙酸乙酯部分对斜纹夜蛾（鳞翅目：夜蛾科）具有潜在的拒食活性，部分活性成分为胡椒碱类似物。胡椒碱及其几何异构体分别表现出强大的拒食活性，推测胡椒碱是甲醇提取物中的主要活性化合物。有趣的是，我们发现当它们混合（50:50）时，拒食活性降低。
Piper ribersoidesWall. (Piperaceae), which is called “Khua Sa khan” in the local language, is mainly grown in Laos. This plant is used as a food in Laos, but no report on its metabolites exists. Crushed stems were immersed in methanol. The ethyl acetate fraction showed potential insect antifeedant activity forSpodoptera litura(Fabricius) (Lepidoptera: Noctuidae), and some of the active compounds were piperine analogs. Piperine and its geometrical isomer independently showed potent antifeedant activities, and piperine was presumably the main active compound in the methanol extract. Interestingly, we discovered that the antifeedant activity was reduced when they were mixed (50:50).