Aromatic components analysis in litchi brandy by GS-MS with stir bar sportive extraction
The aroma components of litchi brandy were analyzed by GC-MS with stir bar sportive extraction,and the relative contents were determined by peak normalization method.65 compounds were separated and 61 of them were identified and determined,accounting to 95.81% of the total area of the peaks.Esters compounds contributed most to litchi brandy with the amount of 60.77%,organic acids compounds 12.23%,alcohols compounds 7.62%,benzene derivatives 6.13%,ketone compounds 4.90% and terpene compounds 4.53%.The top ten aroma composition in order was ethyl acetate 19.02%,2,4-hexadienoic acid ethyl ester 16.53%,sorbic acid 10.73%,diethyl butanedioate 7.70%,ethylcaprylate 4.73%,n-amyl alcohol 4.60%,2,6-Di-tert-butyl-4-methylphenol 2.25%,phenethyl alcohol 2.16%,rose oxide 2.06%,ethyl capmate 1.96%.It was found that esters compounds,organic acids compounds,alcohols compounds,terpene compounds and a few phenolic compounds constituted main aroma substance.
litchi brandyaroma componentstir bar sportive extractionGC-MS