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首页> 外文期刊>Research journal of applied science, engineering and technology >Chemical Profiling and Insecticidal Activity of Artemisia herba-alba Essential Oil Against Papaya Mealybug Paracoccus marginatus ?(Hemiptera: Pseudococcidae)
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Chemical Profiling and Insecticidal Activity of Artemisia herba-alba Essential Oil Against Papaya Mealybug Paracoccus marginatus ?(Hemiptera: Pseudococcidae)

机译：青蒿油对木瓜Mealybug paracoccus marginatus？（半翅目：假球菌）的化学分析和杀虫活性

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摘要

The current study aimed to investigate the chemical composition and insecticidal activity of Artemisia herba-alba essential oil obtained by hydrodistillation and solvent extraction against papaya mealybug Paracoccus marginatus . The essential oil was analysed using gas chromatography-mass spectrometry and the insecticidal activity was recorded for different times and concentrations under laboratory conditions. According to GC-MS results, the chemical components detected of essential oil isolated by ?hydrodistillation and solvent extraction were 52 and 62 compounds of both extraction methods, the main components of essential oil of hydrodistillation method were eucalyptol (32.81%), &alpha-pinene (28.62%) and linalol (10.18%) while the major components of essential oil isolated by solvent extract were pentadecanoic acid (16.69%) and dihomo-??.gamma.-linolenic acid (15.2%). The essential oil of hydrodistillation method exhibited more insecticidal ?activity than solvent extract method against P. marginatus , 1000 mg/L of essential oil isolated by ?hydrodistillation achieved 100% ?mortality of papaya mealybugs after 120, ??168 h of treatment with LCsub50/sub values which ?was?? 65.362 mg/L after 168 h from treatment and LTsub50/sub value which was ?22.386 h???? at 1000 mg/L.? The findings reveal and propose that the essential oil of A. herba-albais a rich by bioactive components and it is a prospective source of botanical insecticides.
机译：目前的研究旨在研究通过加氢蒸馏和溶剂萃取获得的对蒿木粉meal边缘副球菌的茵陈蒿精油的化学组成和杀虫活性。使用气相色谱-质谱法分析精油，并在实验室条件下记录不同时间和浓度下的杀虫活性。根据GC-MS结果，通过加氢蒸馏和溶剂萃取分离出的香精油的化学成分分别为两种萃取方法的52和62种化合物，加氢蒸馏法的精油的主要成分为桉油精（32.81％），α-pine烯（28.62％）和芳樟醇（10.18％），而通过溶剂萃取分离出的香精油的主要成分是十五烷酸（16.69％）和二高-β-γ-亚麻酸（15.2％）。加氢蒸馏法的精油比边缘提取法对边缘菌的杀虫活性更高，经加氢蒸馏分离出的精油1000 mg / L，经120、168 h LC处理后，木瓜粉虱的死亡率达到100％。 50 的值是？处理168小时后为65.362 mg / L，LT 50 值为？22.386 h ???？在1000 mg / L。？这些发现揭示并提出了A.herba-albais的精油富含生物活性成分，它是植物杀虫剂的潜在来源。

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