Chemical Composition and Insecticidal Activity of Essential Oils from Zanthoxylum dissitum Leaves and Roots against Three Species of Storage Pests

Molecules

Cheng-Fang Wang¹  Kai Yang¹  Chun-Xue You¹  Wen-Juan Zhang¹  Shan-Shan Guo¹  Zhu-Feng Geng¹  Shu-Shan Du¹  Yong-Yan Wang¹ 

[1] Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, No.19, Xinjiekouwai Street, Beijing 100875, China; E-Mails:

关键词: Zanthoxylum dissitum;    essential oil;    contact activity;    stored product pests;   

DOI  :  10.3390/molecules20057990

来源: mdpi

【 摘 要 】

This work aimed to investigate chemical composition of essential oils obtained from Zanthoxylum dissitum leaves and roots and their insecticidal activities against several stored product pests, namely the cigarette beetle (Lasioderma serricorne), red flour beetle (Tribolium castaneum) and black carpet beetle (Attagenus piceus). The analysis by GC-MS of the essential oils allowed the identification of 28 and 22 components, respectively. It was found that sesquiterpenoids comprised a fairly high portion of the two essential oils, with percentages of 74.0% and 80.9% in the leaves and roots, respectively. The main constituents identified in the essential oil of Z. dissitum leaves were δ-cadinol (12.8%), caryophyllene (12.7%), β-cubebene (7.9%), 4-terpineol (7.5%) and germacrene D-4-ol (5.7%), while humulene epoxide II (29.4%), caryophyllene oxide (24.0%), diepicedrene-1-oxide (10.7%) and Z,Z,Z-1,5,9,9-tetramethyl-1,4,7-cycloundecatriene (8.7%) were the major components in the essential oil of Z. dissitum roots. The insecticidal activity results indicated that the essential oil of Z. dissitum roots exhibited moderate contact toxicity against three species of storage pests, L. serricorne, T. castaneum and A. piceus, with LD₅₀ values of 13.8, 43.7 and 96.8 µg/adult, respectively.

【 授权许可】

CC BY   
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