黄鹌菜地上部分精油及其成分对白纹伊蚊的杀幼虫活性。

Larvicidal activity of the essential oil of Youngia japonica aerial parts and its constituents against Aedes albopictus.

作者信息

Liu Xin Chao, Liu Qiyong, Chen Xu Bo, Liu Qi Zhi, Liu Zhi Long

出版信息

Z Naturforsch C J Biosci. 2015;70(1-2):1-6. doi: 10.1515/znc-2014-4074.

DOI:10.1515/znc-2014-4074

Abstract

The aim of this study was to evaluate the larvicidal activity of the essential oil of Youngia japonica aerial parts against the larvae of Aedes albopictus and to isolate any active compounds from the oil. Gas chromatography-mass spectrometry (GC-MS) analyses revealed the presence of 31 compounds, with menthol (23.53%), α-asarone (21.54%), 1,8-cineole (5.36%), and caryophyllene (4.45%) as the major constituents. Bioactivity-directed chromatographic separation of the oil led to the isolation of menthol and α-asarone as active compounds. The essential oil of Y. japonica exhibited larvicidal activity against the fourth instar larvae of A. albopictus with an LC₅₀ value of 32.45 μg/mL. α-Asarone and menthol possessed larvicidal activity against the fourth instar larvae of A. albopictus with LC₅₀ values of 24.56 μg/mL and 77.97 μg/mL, respectively. The results indicate that the essential oil of Y. japonica aerial parts and the two constituents can be potential sources of natural larvicides.

摘要

本研究的目的是评估黄鹌菜地上部分精油对白纹伊蚊幼虫的杀幼虫活性，并从该精油中分离出任何活性化合物。气相色谱 - 质谱联用（GC - MS）分析显示存在31种化合物，其中薄荷醇（23.53%）、α - 细辛脑（21.54%）、1,8 - 桉叶素（5.36%）和石竹烯（4.45%）为主要成分。通过生物活性导向的色谱分离法从该精油中分离出薄荷醇和α - 细辛脑作为活性化合物。黄鹌菜精油对白纹伊蚊四龄幼虫表现出杀幼虫活性，LC₅₀值为32.45 μg/mL。α - 细辛脑和薄荷醇对白纹伊蚊四龄幼虫具有杀幼虫活性，LC₅₀值分别为24.56 μg/mL和77.97 μg/mL。结果表明，黄鹌菜地上部分精油及其两种成分可能是天然杀幼虫剂的潜在来源。