A Gas Chromatography-Mass Spectrometry Analysis of the Essential Oils from Brucea javanica Extracted with Different Methods

Brucea javanica(Simaroubaceae) is a medicinal plant traditionally used in Southern China to treat several diseases.In order to enlarge the medication scope,the constituents of the essential oils extracted from Brucea javanica with microwave-assisted hydrodistillation(MAHD) and hydrodistillation(HD) were analyzed by capillary GC-MS and elucidated based on the standard mass spectral data.42 and 37 kinds of volatile components were identified respectively.The relative mass fractions of the constituents were determined by area normalization method.The identified relative contents of the essential oils were 94.09% and 94.13%,respectively.There were differences in some chemical constituents between the two kinds of essential oils.However,their main constituents were safrole,(+)-4-carene,β-myrcene,eugenol methyl ether,2,6-dimethoxy toluene,limonene and estragole.