Study on Fingerprint on Volatile Constituents of Pu-erh Tea

LV Haipeng; ZHONG Qiusheng; SHI Jiang; ZHANG Yue; LIN Zhi

doi:10.13305/j.cnki.jts.2014.01.009

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Journal of Tea Science ›› 2014, Vol. 34 ›› Issue (1) : 71-78. DOI: 10.13305/j.cnki.jts.2014.01.009

Study on Fingerprint on Volatile Constituents of Pu-erh Tea

LV Haipeng¹, ZHONG Qiusheng², SHI Jiang¹, ZHANG Yue¹, LIN Zhi^1,*

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Abstract

The fingerprint on volatile constituents of Pu-erh tea was investigated using HS-SPME/GC-MS. Results showed that the volatile constituents of Pu-erh tea can be well separated using HS-SPME/GC-MS. Based on the analysis of GC chromatogram of 17 tea samples collected from Yunnan province, it was confirmed that 26 peaks in chromatograms can be selected as the fingerprint of peaks of volatile constituents, and it was established as the fingerprint chromatogram for Pu-erh tea. Moreover, the GC fingerprints were analyzed by similarity analysis. The method is of high degree of reproducibility and the resolving of each component is satisfactory, thus the established fingerprints could be used as one of the aroma quality control index for identification and quality assessment of Pu-erh tea.

Key words

fingerprint / HS-SPME/GC-MS / Pu-erh tea / volatile constituents

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LV Haipeng, ZHONG Qiusheng, SHI Jiang, ZHANG Yue, LIN Zhi. Study on Fingerprint on Volatile Constituents of Pu-erh Tea[J]. Journal of Tea Science. 2014, 34(1): 71-78 https://doi.org/10.13305/j.cnki.jts.2014.01.009

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