GC-MS analysis of essential oil of betel extracted by supercritical CO_2 extraction
The betel nut collected from Hainan were pretreated with extraction techniques(supercritical fluid extraction,SFE) to examine essential oil composition.GC-MS was used to analyze the profiles of essential oil from the extract of betel nut.105 peaks were separated from total ion current by means of GC-MS.87 components from compounds detected in the essential oil of belet nut were confirmed according to NIST-MS of GC-MS Solution.It was suggested that SFE technique found most of the extraction oil compounds mainly were alcohols,acids,alkane hydrocarbons.The relative ratio of alcohols were 49.79%,acids were 17.76%,alkane hydrocarbons were 8.31%.The functional components of sterol,Vitamin E,trans-Squalene were high which gave the theoretical basis for research on physiological function of betel nut oil.