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8327276 
Journal Article 
Identification of mosquito repellent in Etlingera Elatior (torch ginger) 
Khalid, SA; Azman, AN 
2016 
Asian Research Publishing Network 
11 
9 
6182-6185 
English 
The commercial repellent product and insecticide used to repel mosquitoes was reported to contain toxicity, caused skin irritant and has given rise to environmental concern. In consideration of this, the need to develop environmental friendly products is imperative to control the mosquito attack. The means of this study are to analyze the content of 2-undecanone (repellent agent) in the extracted Etlingera Elatior oil of its stem, midrib, leaves and flower and also to identify its prospect as a natural mosquito repellent. Steam distillation was chosen for extraction of Etlingera Elatior with 2 different solvent which are methanol and n-hexane. The characterization of the oil was analyzed using Gas Chromatography-Mass Spectrometry. The obtained result is 2-undecanone, where the desired component was not identified in the Etlingera Elatior plant. Despite of the absence of 2-undecanone, a great number of different components were detected and a few of other potential reported mosquito repellent were present such as limonene, hexanal and dodecanoic acid in small amount. In conclusion, Etlingera Elatior has the potential to be a natural mosquito repellent. © 2006-2016 Asian Research Publishing Network (ARPN). All rights reserved. 
Essential oil; Extraction; Gas chromatography-mass spectrometry; Steam distillation