title: Chemical Compositions and Insecticidal Activities of Alpinia kwangsiensis Essential Oil against Lasioderma serricorne.
abstract: The essential oil obtained by hydrodistillation from Alpinia kwangsiensis rhizomes was investigated by GC-MS. A total of 31 components representing 92.45% of the oil were identified and the main compounds in the oil were found to be camphor (17.59%), eucalyptol (15.16%), β-pinene (11.15%) and α-pinene (10.50%). These four compounds were subsequently isolated and the essential oil and four isolated compounds exhibited potent insecticidal activity against Lasioderma serricorne adults. During the assay, it was shown that the essential oil exhibited both potential contact (LD50 = of 24.59 μg/adult) and fumigant (LC50 = of 9.91 mg/L air) toxicity against Lasioderma serricorne. The study revealed that the insecticidal activity of the essential oil can be attributed to the synergistic effects of its diverse major components, which indicates that oil of Alpinia kwangsiensis and its isolated compounds have potential to be developed into natural insecticides to control insects in stored grains and traditional Chinese medicinal materials.
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. abelabel@126.com.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China. zwj0729@mail.bnu.edu.cn.
authors.forename: Wen-Juan
authors.initials: WJ
authors.lastname: Zhang
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. huangdongye8@163.com.
authors.forename: Dong-Ye
authors.initials: DY
authors.lastname: Huang
authors.affiliation: Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China. yingw150@163.com.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. jtx_wjy@163.com.
authors.forename: Jian-Yu
authors.initials: JY
authors.lastname: Wei
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. jtxlizhihua@hotmail.com.
authors.forename: Zhi-Hua
authors.initials: ZH
authors.lastname: Li
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. nnsjs@sina.com.
authors.forename: Jian-Sheng
authors.initials: JS
authors.lastname: Sun
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. baijiafeng10@163.com.
authors.forename: Jia-Feng
authors.initials: JF
authors.lastname: Bai
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. 18301243767@163.com.
authors.forename: Zhao-Fu
authors.initials: ZF
authors.lastname: Tian
authors.affiliation: Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China. 15177471944@163.com.
authors.forename: Ping-Juan
authors.initials: PJ
authors.lastname: Wang
authors.affiliation: Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China. dushushan@bnu.edu.cn.
authors.forename: Shu-Shan
authors.initials: SS
authors.lastname: Du
mesh_terms: D032429:Alpinia / Q000737:chemistry*; D000818:Animals; D001517:Coleoptera / Q000187:drug effects*; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D027343:Rhizome / Q000737:chemistry*
chemical_list: D007306:Insecticides; D009822:Oils, Volatile
keywords: A. kwangsiensis; Lasioderma serricorne; contact toxicity; essential oil; fumigant toxicity