Comparative assessment of tea quality by various analytical and sensory methods with emphasis on tea polyphenols.
本研究旨在建立一种用于茶叶(Camellia sinensis)质量评价的高效方法,采用基于酪氨酸酶(tyrosinase)的生物传感器检测茶多酚(polyphenols, PP)。酪氨酸酶可催化茶多酚氧化聚合生成茶黄素(theaflavins, Tf)和茶红素(thearubigins, Tr),二者决定茶汤颜色与涩味,是茶叶品质...