Discrimination of Chinese teas according to major amino acid composition by a colorimetric IDA sensor

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• 作者：Junjie Li^a ; ¹ ; Beibei Fu^a ; ¹ ; Danqun Huo^a ; ^{huodq@cqu.edu.cn} ; Changjun Hou^a ; ^{houcj@cqu.edu.cn}Author Vitae ; Mei Yang^a ; Caihong Shen^b ; Huibo Luo^c ; Ping Yang^b
• 关键词：Chinese tea ; Indicator displacement assay ; Amino acids ; Colorimetric sensor ; Theanine
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：240
• 期：Complete
• 页码：770-778
• 全文大小：1952 K
• 卷排序：240

文摘

A 3 × 3 colorimetric sensor array was constructed based on indicator displacement assays;. The sensor can be used to discriminate Chinese teas of different categories, quality grades, and geographical origins. HCA and PCA analysis confirmed the good performance of the presented sensor array for tea discrimination.