Congratulations to Dr. Wei-Li Shih, a Ph.D. graduate (D09) supervised by Prof. Lin-Chi Chen, for publishing his latest research in the Q1 analytical chemistry journal Journal of Electroanalytical Chemistry
"A voltammetric electronic tongue array for tea brewing assessment via multi-electrode electrocatalytic fingerprinting"
This study developed a multi-electrode sensing system centered on a Voltammetric Electronic Tongue (VET) for the rapid assessment of tea beverage flavor and quality, with potential for future applications in real-time monitoring of beverage processing. The research team integrated various electrode materials with cross-sensitivity characteristics, including conductive polymer (PEDOT), Prussian Blue and its analogs, as well as gold electrodes and glassy carbon electrodes, to establish electrochemical fingerprints reflecting the properties of different antioxidant molecules.
The results demonstrate that this system can effectively identify various common antioxidant components in tea and has been successfully applied to the direct analysis of commercially available tea beverages. The measurement results show a high correlation with antioxidant activity. Furthermore, this study can distinguish tea beverages brewed at different temperatures and further proposes an interpretable "cold brew indicator," providing a new tool for tea flavor analysis.
Full article: https://doi.org/10.1016/j.jelechem.2025.119776