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首页> 外文期刊>Parasitology Research >Chemical composition and larvicidal activity of the essential oil of Plectranthus amboinicus (Lour.) Spreng against Anopheles stephensi: a malarial vector mosquito.
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Chemical composition and larvicidal activity of the essential oil of Plectranthus amboinicus (Lour.) Spreng against Anopheles stephensi: a malarial vector mosquito.

机译：Plectranthus amboinicus（Lour。）Spreng对按蚊按蚊的化学成分和杀幼虫活性：疟疾媒介蚊子。

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摘要

Essential oil of Plectranthus amboinicus was studied for its chemical composition and larvicidal potential against the malarial vector mosquito Anopheles stephensi. Totally 26 compounds were identified by GC and GC-MS. The major chemical compounds were carvacrol (28.65%) followed by thymol (21.66%), alpha-humulene (9.67%), undecanal (8.29%), gamma-terpinene (7.76%), rho-cymene (6.46%), caryophyllene oxide (5.85%), alpha-terpineol (3.28%) and beta-selinene (2.01%). The larvicidal assay was conducted to record the LC(50) and LC(90) values and the larval mortality was observed after 12 and 24 h of exposure period. The LC(50) values of the oil were 33.54 (after 12 h) and 28.37 ppm (after 24 h). The LC(90) values of the oil were 70.27 (after 12 h) and 59.38 ppm (after 24 h). The results of the present study showed that the essential oil of P. amboinicus is one of the inexpensive and eco-friendly sources of natural mosquito larvicidal agent to control/reduce the population of malarial vector mosquito.
机译：研究了凤尾香精油的化学成分和对付疟疾媒介蚊Anopheles stephensi的杀幼虫潜力。通过GC和GC-MS鉴定出总共26种化合物。主要化合物是香芹酚（28.65％），其次是百里香酚（21.66％），α-hu烯（9.67％），十一烷（8.29％），γ-萜品烯（7.76％），Rhy-Cymene（6.46％），石竹烯氧化物（5.85％），α-松油醇（3.28％）和β-selinene（2.01％）。进行幼虫测定以记录LC（50）和LC（90）值，并在暴露期12和24小时后观察到幼虫死亡率。油的LC（50）值为33.54（12小时后）和28.37 ppm（24小时后）。油的LC（90）值为70.27（12小时后）和59.38 ppm（24小时后）。本研究的结果表明，P。amboinicus的精油是控制/减少疟疾媒介蚊子种群的天然蚊子杀幼虫剂的廉价且生态友好的来源之一。

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