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Brick dark tea: a review of the manufacture, chemical constituents and bioconversion of the major chemical components during fermentation

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Abstract

Brick dark tea is a unique brick-formed tea compressed from the older, coarse and rough leaves and branches of Camellia sinensis var. sinensis and C. sinensis var. assamica mainly in Hunan, Sichuan and Yunnan provinces in China. Researches on brick dark tea have become increasingly popular owing to its special health benefits. A series of biochemical reactions occur during the special production—microbial fermentation stage and multitudinous components have been detected. Many of the functional components have been isolated and identified from brick dark tea. In this paper, modern manufacturing techniques about different kinds of brick dark tea and their effects on transformation of the chemical constituents, as well as the chemical components were reviewed and discussed.

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Acknowledgments

The financial supports received are gratefully acknowledged. This work was funded by Anhui Agricultural University Talents Foundation (YJ2011-06), and Program for Changjiang Scholars and Innovative Research Team in University IRT1101, the Earmarked Fund for Modern Agro-industry Technology Research System in Tea Industry of Chinese Ministry of Agriculture (nycytx-26), Anhui Major Demonstration Project for Leading Talent Team on Tea Chemistry and Health, and Biotechnology Platform Construction Foundation of Anhui Province (13Z03012).

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  1. State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang West Road, Hefei, 230036, Anhui Province, China

    Wen-Jun Zheng, Xiao-Chun Wan & Guan-Hu Bao

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  1. Wen-Jun Zheng
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  2. Xiao-Chun Wan
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Correspondence to Guan-Hu Bao.

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Table 3 Identified compounds in brick dark tea
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Zheng, WJ., Wan, XC. & Bao, GH. Brick dark tea: a review of the manufacture, chemical constituents and bioconversion of the major chemical components during fermentation. Phytochem Rev 14, 499–523 (2015). https://doi.org/10.1007/s11101-015-9402-8

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