領(lǐng)學(xué)術(shù)科研之先,創(chuàng)食品科技之新
—— 中國食品雜志社
期刊集群
Detection of composition of functional component theabrownins in Pu-erh tea by degradation method
來源:食品科學(xué)網(wǎng) 閱讀量: 239 發(fā)表時間: 2022-05-30
作者: Simin Hu, Xiaolei Li, Chuangchuang Gao, Xianyu Meng, Mingchao Li, Yuqian Li, Tianrui Xu, Qian Hao
關(guān)鍵詞: Pu-erh tea; Polymer; Theabrownin; Thiol degradation
摘要:

Habitual tea consumption can reduce the risk of ASCVD morbidity and mortality and all-cause mortality in China, and long-term adherence to this habit can provide greater protection. Pu-erh tea is one of the representatives of post-fermented teas, and the polymers in Pu-erh tea have anti-cancer and anti-hyperlipidemic activities, but their chemical composition is still unknown. In this study, the chemical composition of Pu-erh tea was investigated in detail and eight (1–8) known compounds were isolated. The polymers in Pu-erh tea were also degraded by thiol degradation, and the fragments of?quercetin?and (–)-epicatechin-3-O-gallate were found in the thiol degradation products of Pu-erh tea polymers by?UPLC?observation and separation and?purification. This is the first time that this fragment was obtained in Pu-erh tea polymer.

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