ArticleFood chemistry: X2024
Insights into "Yin Rhyme": Analysis of nonvolatile components in Tieguanyin oolong tea during the manufacturing process.
Article in Food chemistry: X, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Effects of Optimized Key Processing Parameters on Macro-Compositions and Volatile Organic Compounds in High-Altitude Oolong Tea (Plants (Basel, Switzerland) · 2026Article
- Deep learning enable precision authentication of seasonal and processing signatures in tieguanyin tea.NPJ science of food · 2026Article
- A Taste Bud Organoid-Based Biosensor with a 3-Dimensional Microelectrode Array for Evaluating Caffeine's Impacts on Taste Sensing.BME frontiers · 2026Article
- Exploring the taste code of light-withered tea: the mechanism of nonvolatile metabolite changes in LED light-withered oolong tea (Food chemistry: X · 2025Article
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8 authors.
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Abstract
Tieguanyin (TGY) is renowned for its distinctive "Yin Rhyme" flavor. To elucidate the underlying formation mechanism, we conducted sensory evaluations, electronic tongue analysis, and widely-targeted metabolomics. Our sensory evaluations and electronic tongue results indicated that TGY exhibits a thick and mellow taste profile, contributing to the "Yin Rhyme" flavor. Metabolomics analysis of tea products revealed that TGY shows significantly higher concentrations of umami substances (L-glutamate, L-theanine) and bitter substances (valine, catechins) compared to Jinguanyin (JGY). Additionally, metabolomic analysis during different oolong tea processing stages revealed significant differences in 21 substances, including L-glutamate, L-theanine, valine, and catechins, between fresh leaves of both varieties. These substances exhibited distinct fluctuation patterns during processing, indicating that the cultivar plays a crucial role in developing the "Yin Rhyme" flavor, which was enhanced throughout processing. This study provides a theoretical foundation for understanding the formation of the unique "Yin Rhyme" flavor of TGY.
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