Metabolomics analysis reveals the mechanism underlying the improvement in the color and taste of yellow tea after optimized yellowing

Yin, Xuchao; Zhao, Mengjie; Zhang, Jixin; Li, Tiehan; Zhang, Yiyi; Wang, Yujie; Wei, Yuming

doi:10.1016/j.foodchem.2023.136785

Cited by 11 publications

(1 citation statement)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The normal synthesis of various flavonol glycosides depends on the participation of the corresponding glycosyltransferase, and these enzymes in the process of fixation and yellowing with temperature treatment, even if not completely inactivated, their efficiency is greatly reduced. The high temperature and high humidity environment brought by yellowing is conducive to the hydrolysis of flavonoid glycosides( Wei et al, 2023 ). Therefore, the most reasonable explanation is that yellowing inhibits the continued synthesis of flavonol glycosides and promotes their decomposition.…”

Section: Resultsmentioning

confidence: 99%

Widely targeted metabolomic analysis reveals effects of yellowing process time on the flavor of vine tea (Ampelopsis grossedentata)

Qi,

Zeng,

et al. 2024

Food Chemistry: X

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Widely targeted metabolomic analysis reveals effects of yellowing process time on the flavor of vine tea (Ampelopsis grossedentata)

Qi,

Zeng,

et al. 2024

Food Chemistry: X

View full text Add to dashboard Cite

Hyperspectral guidance for summer tea processing: Enhancing taste and aroma through short‐term cycled heaping

Cao,

Tian,

Zeng

et al. 2024

Food Frontiers

View full text Add to dashboard Cite

To reduce the unpleasant flavor in tea infusion made from summer fresh leaves and lessen tea resource wastage, a short‐term cycled heaping method, addressing the temperature/moisture variations during prolonged heaping, was introduced to produce high‐quality yellow tea with significantly enhanced taste and aroma. Furthermore, a hyperspectral approach was developed to anticipate such improvements. Specifically, short‐term cycled heaping reduced summer tea's astringency and bitterness while increasing sweetness. Using near‐infrared spectroscopy, the multiplicative scatter correction (MSC)–support vector machine (SVM) model predicted tea umami with 66.25% precision and richness with 77.64% accuracy via standard normal variate (SNV)–SVM, based on epigallocatechin (EGC), epicatechin (EC), and gallocatechin gallate (GCG) variations. Aroma enhancement was forecasted by a hyperspectral–electronic nose regression model, achieving over 81.50% prediction accuracy for summer tea aromas in the visible spectrum and surpassing 73.45% in the near‐infrared domain, primarily attributed to pentanal, propanal, toluene, ethyl propionate, and 2,3‐pentanedione variations. Overall, hyperspectral‐guided summer tea processing, particularly for summer‐harvested leaves, shows potential in offering a valuable screening tool, enhancing quality, and efficiency in the tea industry and promoting sustainable development.

show abstract

Metabolomics and electronic-tongue analysis reveal differences in color and taste quality of large-leaf yellow tea under different roasting methods

Sheng,

Lu,

Zhang

et al. 2024

Food Chemistry: X

View full text Add to dashboard Cite

Metabolomics analysis reveals the mechanism underlying the improvement in the color and taste of yellow tea after optimized yellowing

Cited by 11 publications

References 37 publications

Widely targeted metabolomic analysis reveals effects of yellowing process time on the flavor of vine tea (Ampelopsis grossedentata)

Widely targeted metabolomic analysis reveals effects of yellowing process time on the flavor of vine tea (Ampelopsis grossedentata)

Hyperspectral guidance for summer tea processing: Enhancing taste and aroma through short‐term cycled heaping

Metabolomics and electronic-tongue analysis reveal differences in color and taste quality of large-leaf yellow tea under different roasting methods

Contact Info

Product

Resources

About