Discriminant Classification of Wuyi Yan Tea Based on Multiple Chemical Fingerprint

WANG Li-yuan; CHENG Hao; ZHOU Jian; HE Xiao-yan; XUE Feng-ren; XU Jin-bin; HE Wei

doi:10.13305/j.cnki.jts.2010.02.002

Journal of Tea Science >

2010 , Vol. 30 >Issue 2: 83 - 88

DOI: https://doi.org/10.13305/j.cnki.jts.2010.02.002

Discriminant Classification of Wuyi Yan Tea Based on Multiple Chemical Fingerprint

WANG Li-yuan ,
CHENG Hao ,
ZHOU Jian ,
HE Xiao-yan ,
XUE Feng-ren ,
XU Jin-bin ,
HE Wei

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1. Tea Research Institute, Chinese Academy of Agriculture Science, National Center for Tea Improvement, Hangzhou 310008 China;
2. department for management of growing industry of Fujian Agriculture Bureau, Fuzhou 350003, China;
3. Nanping Municipal Bureau of Agriculture, Nanping 353000, China;
4. Nanjing Agricultural University, Nanjing 210095, China

Received date: 2009-07-08

Revised date: 2009-09-01

Online published: 2019-09-10

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Abstract

The method of discriminant classification of Wuyi yan tea based on multiple chemical fingerprint by conjoining two HPLC chromatograms was studied. The results showed that samples from two raw material cultivars or from two districts could be distinguished effectively by using those discriminant method obtained from the investigation. The recognition accuracy for the training sample set was 100%, cross-validating was above 97% and the recognition accuracy for the testing sample set was about 85%. Those result revealed that it was possible to distinguish or verify Wuyi Yan tea by combining the techniques of multiple chemical fingerprint and discriminant classification.

Key words： Olong tea; Wuyi Yan tea; chemical fingerprint; discriminant classification

Cite this article

WANG Li-yuan , CHENG Hao , ZHOU Jian , HE Xiao-yan , XUE Feng-ren , XU Jin-bin , HE Wei . Discriminant Classification of Wuyi Yan Tea Based on Multiple Chemical Fingerprint[J]. Journal of Tea Science, 2010 , 30(2) : 83 -88 . DOI: 10.13305/j.cnki.jts.2010.02.002

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