Abstract:
TDS-GC-MS chromatographic fingerprints of 72 flavors,which were belong to two different characteristic types,were collected and integrated with analysis method of PLS-DA,to establish class model for two different characteristic flavors.When P0.05,26 verified samples were used to verify class model,and the result showed that the class model performed well in discrimination of verified samplesapos; classifying;meanwhile,to calculate the contribution rate of each chemical compound to classify of the two types of flavors by analysis the factors of contribute matrix,to characterize the differences of chemical compounds in two types of flavors,led to a satisfying results.