GC-MS analysis of aroma components extracted from sweet potato leaf tea by microwave-simultaneous distillation and extraction

The aroma components were extracted from sweet potato leaf tea by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS) .97 kinds of components were identified, which accounted for 83.95% of the total peak area of the aroma components.Among them, the major components were αlpha-cadinol (1.07%) , 1, 2, 3, 4, 4α, 7-hexahydro-1, 6-dimethyl-4- (1-methylethyl) naphthalene (1.22%) , (1S-cis) -1, 2, 3, 5, 6, 8α-hexahydro-4, 7-dimethyl-1- (1-methylethyl) naphthalene (1.32%) , 2, 6-dimethyl-6- (4-methyl-3-pentenyl) bicycle 3.1.1hept-2-ene (1.37%) , gamma-elemene (1.38%) , ptytol (1.65%) , caryophylleneoxide (2.07%) , 8-isopropenyl-1, 5-dimethyl-cyclodeca-1, 5-diene (8.49%) , caryophyllene (14.61%) , et al.Components which were identified were terpenes and derivative, its had physiological activity.