Chemical Composition and Bioactivities of the Essential Oil from Etlingera yunnanensis against Two Stored Product Insects

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Shan-Shan GuoNing Lei

Abstract

The chemical composition of the essential oil of Etlingera yunnanensis rhizomes and its contact and repellent activities against Tribolium castaneum (Herbst) and Liposcelis bostrychophila (Badonnel) were investigated. The essential oil obtained from E. yunnanensis rhizomes with hydrodistillation was performed by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry. The main components of the essential oil were identified to be estragole (65.2%), β-caryophyllene (6.4%), 1,8-cineole (6.4%), limonene (5.2%), and α-pinene (2.4%). It was found that the essential oil of E. yunnanensis rhizomes possessed contact toxicity against T. castaneum and L. bostrychophila (LD50 = 23.33 μg/adult and LD50 = 47.38 μg/cm², respectively). Estragole, 1,8-cineole, and limonene exhibited stronger contact toxicity (LD50 values of 20.41, 18.86, and 13.40 μg/adult, respectively) than β-caryophyllene (LD50 = 41.72 μg/adult) against T. castaneum adults. Estragole possessed stronger contact toxicity (LD50 = 30.22 µg/cm²) than β-caryophyllene, 1,8-cineole, and limonene (LD50 values of 74.11, 321.20, and 239.62 μg/adult, respectively) against L. bostrychophila adults. Repellency of the crude oil was also evaluated. The essent...Continue Reading

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May 7, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Cheng-Fang WangYong-Yan Wang

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Citations

Apr 5, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hao JiangYongde Yue
Apr 20, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shanshan GuoShushan Du
Dec 1, 2019·Zeitschrift Für Naturforschung. C, a Journal of Biosciences·Radu Claudiu FierascuAlina Paunescu
Mar 11, 2019·Environmental Science and Pollution Research International·Neha UpadhyayNawal Kishore Dubey
Sep 8, 2017·The Journal of Organic Chemistry·Alessandro DossenaMaurizio Fagnoni

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