Open AccessEssential Oils from Clausena Species in China: Santalene Sesquiterpenes Resource and Toxicity against Liposcelis bostrychophila
Author(s) -
Shan-Shan Guo,
Yan Wang,
Zhen-Yang Chen,
Zhang Zhe,
Jiankang Cao,
Xue Pang,
ZhuFeng Geng,
Shu-Shan Du
Publication year - 2018
Publication title -
journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.436
H-Index - 50
eISSN - 2090-9063
pISSN - 2090-9071
DOI - 10.1155/2018/7813675
Subject(s) - chemistry , rutaceae , traditional medicine , toxicology , horticulture , food science , botany , biology , medicine
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 (LD 50 = 37.26 µ g/cm 2 ). Santalol (LD 50 = 30.26 µ g/cm 2 ) and estragole (LD 50 = 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.