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瓜實蠅產卵之偏好性(Ⅱ):洋香瓜果實主成份之萃取與分析

Ovipositional Preference of the Melon Fly, Bactrocera cucurbitae Coquillet (Diptera: Tephritidae) (Ⅱ): Analysis of Extracted Chemicals from Fruits of the Muskmelon

摘要


將成熟洋香瓜(Cucumis melo)之果實以三種低溫萃取法:上部空間吸附法(headspace absorption extraction)、蒸氣蒸餾溶劑萃取法(Likens-Nickerson extraction)及真空蒸餾法(vacuum distillation extraction),分別萃取其果實中所含揮發性重要成份,加以分析並比較其差異性。將重要成份經生物檢定比較其對瓜實蠅(Bactrocera cucurbitae Coq.)之產卵誘引性。經篩選出丙酸乙酯(ethyl propanoate)、丁酸乙酯(ethyl butyrate)、乙酸異丁酯(isobutyl acetate)及2-硫基丙酸乙酯(ethyl 2-mercaptopropionate)為誘卵性較佳者,而乙酸乙酯(ethyl acetate)與乙酸丁酯(butyl acetate)等次之。期配製出可誘引瓜實蠅產卵之人工產卵誘引劑,而利用於防治技術。

關鍵字

洋香瓜 萃取 瓜實蠅 產卵誘引劑

並列摘要


To identify the different kinds of chemicals that can be extracted from muskmelon, three extractive methods were used: headspace extraction, Likens-Nickerson extraction, and vacuum distillation extraction. From bioassaying the ovipositional attraction of each chemical to the melon fly (Bactrocera cucurbitae Coquillet), the more-attractive chemicals included ethyl propanoate, ethyl butyrate, isobutyl acetate, ethyl 2-mercaptopropionate, ethyl acetate and butyl acetate. Those can be mixed to produce an artificial ovipositional attractant.

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