
Applied Sciences, Год журнала: 2024, Номер 15(1), С. 330 - 330
Опубликована: Дек. 31, 2024
The gallated catechin content in Wuyi Rock Tea is higher the summer, leading to a more bitter and less desirable taste. Here, tannase, tyrosinase, laccase were used treat summer Rougui extracts. effects of single combined enzymes on taste tea extracts their mechanisms action analyzed. Compared with no-enzyme-treated sample, sensory score results showed that tannase was most effective, increasing bitterness astringency scores by 113.9% 255.3%, respectively. Among enzyme treatments, samples treated tyrosinase yielded best scores, 141.2% 289.0%, Data obtained using an electronic tongue confirmed role these enzymes, showing that, addition astringency, treatment also influenced aftertaste aftertaste, as well its sourness sweetness. Further product analysis revealed hydrolyzes ester bonds gallacyl groups catechins, converting them non-gallated while oxidize phenolic hydroxyl catechins form o-quinone, production theaflavins improved quality. This study presents effective approach improving quality biological enzymes.
Язык: Английский