龙井茶香气成分的产区差异分析

doi:10.13305/j.cnki.jts.2018.05.008

Abstract

Abstract: Longjing tea is one of the most famous traditional tea and a typical product of geographical indication in China. In this study, the composition and relative contents of aroma components in a representative batch of Longjing tea samples of 3 different origins, namely Xihu region, Yuezhou region, and Qiantang region, were analyzed by headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME/GC-MS). Results showed that there were some differences in the composition of aroma components among the three different regions, and 47, 45 and 40 common aroma components were identified in the tea samples from Qiantang region, Yuezhou region, and Xihu region, respectively. Moreover, Longjing tea samples from three different regions had been distinguished successfully using PLS-DA model (fitting parameters: R²Y=0.885 and Q²=0.777) which was established basing on the relative contents of aroma components. The distributions of 12 key aroma components in different areas were elucidated by the data processing software.

Key words: Longjing tea, aroma, producing areas, difference, analysis

CLC Number:

TS272.5

WANG Mengqi, SHAO Chenyang, ZHU Yin, ZHANG Yue, LIN Zhi, LYU Haipeng. Aroma Constituents of Longjing Tea Produced in Different Areas[J]. Journal of Tea Science, 2018, 38(5): 508-517.

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Aroma Constituents of Longjing Tea Produced in Different Areas

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