来自夜香树生物活性水相部分的低分子量酚类物质。

Low molecular weight phenols from the bioactive aqueous fraction of Cestrum parqui.

作者信息

D'Abrosca Brigida, DellaGreca Marina, Fiorentino Antonio, Monaco Pietro, Zarrelli Armando

机构信息

Dipartimento di Scienze della Vita, Seconda Università di Napoli, Via Vivaldi 43, I-81100 Caserta, Italy.

出版信息

J Agric Food Chem. 2004 Jun 30;52(13):4101-8. doi: 10.1021/jf049847v.

DOI:10.1021/jf049847v

PMID:15212454

Abstract

The aqueous fraction of fresh leaves of Cestrum parqui and its organic fractions have been assayed for their phytotoxicity on Lactuca sativa, Lycopersicon esculentum, and Allium cepa. The tests showed that the bioactivity was retained in the organic fractions. Chromatographic processes led to isolation and characterization of the N-(p-carboxymethylphenyl)-p-hydroxybenzamide together with 17 low molecular weight phenols and 2 flavones. The phytotoxicity tests showed a good activity of these compounds on the target species. Comparison of some metabolites with commercial herbicides revealed a major activity of the natural compounds at lower concentrations.

摘要

对夜香树鲜叶的水相部分及其有机相部分进行了检测，以测定它们对生菜、番茄和洋葱的植物毒性。测试表明，生物活性保留在有机相中。色谱法分离并鉴定出了N-(对羧甲基苯基)-对羟基苯甲酰胺，以及17种低分子量酚类和2种黄酮类化合物。植物毒性测试表明这些化合物对目标物种具有良好的活性。将一些代谢产物与商业除草剂进行比较发现，天然化合物在较低浓度下具有主要活性。