Analysis of Distasteful Substance in Bayberry Juice by Solid Phase Microextraction Combined with GC-MS

Abstract:

To investigate the distasteful substance in bayberry juice,the aromatic components in juice of bayberry were extracted by SPME and analyzed by GC-MS.By comparing the two samples,the reasons for the bayberry juice’s off-flavor was listed as follows: the reduction of esters and trans-Caryophyllene;the increasing of ethanol and 1-butanol,3-methyl-,which have an alcoholic odor;the increasing of 1-nonene and hexanoic acid,which have a rancid odor;the increasing of aldehydes for polyphenol oxidase and lipid oxidation.