Analysis of Aroma Components and Fingerprints of the Ginger Oleoresin from Different Areas

The aroma components in Ginger oleoresin were analyzed by coupling solid-phase microextraction( SPME) with gas chromatography-mass spectrometry( GC-MS),and chemical compounds were identified and the relative percentages of the constituents were determined by normalization method. The results showed that there were significant differences in aroma components of ginger oleoresin samples between different districts. The obtained fingerprints of samples were based on the relative peak areas of 28 peaks. This study provided theory foundation for the quantity control of ginger oleoresin and origin identification.