Determination of Characteristic Aroma Components from Longjing Tea and Cultivar Discriminant Analysis
A headspace solid phase microextraction-gas chromatography/mass spectrometry (HS SPMEGC/MS) method combined with retention index was used to analyze volatile components from 39 Longjing teas.A total of more than 200 volatile components were found in the Longjing teas,including alcohols,esters,ketones,and heterocyclic compounds,in which 26 common characteristic volatile components were screened.Principal component analysis was carried out to effectively distinguish 24 Longjing teas from West Lake district and 15 suspected Longjing teas.The method can be applied for quality analysis,authenticity identification and origin traceability of the famous tea,providing reference for the qualitative and quantitative analysis of volatile components from other products.
NETL
NSTL
万方数据
维普
