Discrimination of Green Teas from Different Geographical Origins by Using HS-SPME/GC-MS and Pattern Recognition Methods

作者：Ye, Nengsheng^*; Zhang, Liqin; Gu, Xuexin

来源：Food Analytical Methods, 2012, 5(4): 856-860.

DOI：10.1007/s12161-011-9319-9

• Gas chromatography-mass spectrometry
• Solid-phase microextraction
• Green tea
• Geographical analysis
• Pattern recognition

The profiling of volatile organic components (VOCs) has been investigated by gas chromatography-mass spectrometry (GC-MS) analysis and applied for the discrimination of green teas from different geographical origins. The VOCs were extracted from the dried tea leaves by headspace solid-phase microextraction procedure and followed by GC-MS analysis. Tea samples from different origins were correctly discriminated according to their GC-MS profiling of VOCs by principal component analysis, cluster analysis, and linear discriminant analysis. Our results demonstrate that the developed method in this study can be used to discriminate the green tea samples from different geographical origins with high reliability.

• 出版日期2012-8
• 单位首都师范大学