Chemical Compositions and Insecticidal Activities of Alpinia kwangsiensis Essential Oil against Lasioderma serricorne

Molecules

Yan Wu¹  Wen-Juan Zhang²  Dong-Ye Huang¹  Ying Wang²  Jian-Yu Wei¹  Zhi-Hua Li¹  Jian-Sheng Sun¹  Jia-Feng Bai¹  Zhao-Fu Tian¹  Ping-Juan Wang¹  Shu-Shan Du² 

[1] Technical Center of China Tobacco Guangxi Industrial Co., Ltd., Nanning 530001, Guangxi, China;Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China;

关键词: A. kwangsiensis;    Lasioderma serricorne;    essential oil;    contact toxicity;    fumigant toxicity;   

DOI  :  10.3390/molecules201219818

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.