Characterization of white tea metabolome: Comparison against green and black tea by a nontargeted metabolomics approach

Food Research International
Weidong DaiZhi Lin

Abstract

White tea is considered the least processed form of tea and is reported to have a series of potent bioactivities, such as antioxidant, anti-inflammatory, anti-mutagenic, and anti-cancer activities. However, the chemical composition of white tea and the dynamic changes of the metabolites during the manufacturing process are far from clear. In this study, we applied a nontargeted metabolomics approach based on ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-QTOF/MS) to comprehensively profile the characteristic metabolites of white tea. There were significant differences in the content of amino acids, catechins, dimeric catechins, flavonol and flavone glycosides, and aroma precursors in white tea compared with green and black teas that were manufactured from the same fresh tea leaves. Furthermore, the dynamic changes of the metabolites in the tea samples with various withering durations of 0, 4, 8, 12, 16, 20, 24, 28, and 36 h were also profiled. This study offers a comprehensive characterization of the metabolites and their changes in white tea.

Citations

Jun 24, 2017·Food & Function·S PastorizaJ A Rufián-Henares
Aug 4, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Vasilisa PedanIrene Chetschik
Sep 27, 2018·Journal of Food Science·Liyue LiuWei Liu
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May 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xinlei LiXinyi Jin
Jan 21, 2020·Food Research International·Chaozhen ZengZhonghua Liu
Nov 6, 2020·Nature Communications·Xiaomin YuRenyi Liu
Dec 30, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Qin-Cao ChenZhi Lin
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Justyna PiechockaKrystyna Szymandera-Buszka
Dec 24, 2021·Frontiers in Cellular and Infection Microbiology·Xuehua XieHongwu Wang
Dec 26, 2021·Nature Protocols·Jianbo FuFeng Zhu

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