Essential Oils from Clausena Species in China: Santalene Sesquiterpenes Resource and Toxicity against Liposcelis bostrychophila. (19th November 2018)

• Record Type: Journal Article
• Authors: Guo, Shan-Shan; Wang, Yang; Chen, Zhen-Yang; Zhang, Zhe; Cao, Ju-Qin; Pang, Xue; Geng, Zhu-Feng; Du, Shu-Shan
• Other Names: Khajeh Mostafa Academic Editor.
• Is Part Of: Journal of chemistry. Volume 2018(2018)
• Publication Date: 2018-11-19
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1155/2018/7813675
• Languages: English
• ISSNs: 2090-9063

Abstract

Abstract : To develop natural product resources from the Clausena genus (Rutaceae), the essential oils (EOs) from four Clausena plants ( Clausena excavata, C. lansium, C. emarginata, and C. dunniana ) were analyzed by GC-MS. Their lethal (contact toxicity) and sublethal effects (repellency) against Liposcelis bostrychophila (LB) adults were also evaluated. Santalene sesquiterpene was the precursor substance of santalol, a valuable perfumery. It was found that plenty of α -santalol (31.7%) and α -santalane (19.5%) contained in C. lansium from Guangxi Province and α -santalene (1.5%) existed in C. emarginata . Contact toxicity of the four EOs was observed, especially C. dunniana (LD50 = 37.26 µ g/cm 2 ). Santalol (LD50 = 30.26 µ g/cm 2 ) and estragole (LD50 = 30.22 µ g/cm 2 ) were the two most toxic compounds. In repellency assays, C. excavate, C. lansium, and C. emarginata exhibited repellent effect at the dose of 63.17 nL/cm 2 2 h after exposure (percentage repellencies were 100%, 98%, and 96%, respectively). Four Clausena EOs and santalol had an excellent potential for application in the management of LB. Clausena plants could be further developed to find more resources of natural products.