Theabrownins in dark tea form complexes with tea polysaccharide conjugates

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成果类型：

期刊论文

作者：

Chen, Xiaoqiang;Wang, Mengdie;Wang, Zhiyuan;Liu, Xiuling;Cao, Wendan;...

通讯作者：

Chen, XQ

作者机构：

[Wang, Mengdie; Qi, Yonggang; Liu, Xiuling; Wang, Zhiyuan; Cao, Wendan; Zhang, Na; Chen, Xiaoqiang] Hubei Univ Technol, Cooperat Innovat Ctr Ind Fermentat, Natl Ctr Cellular Regulat & Mol Pharmaceut 111, Key Lab Fermentat Engn,Minist Educ & Hubei Prov,Mi, Wuhan 430068, Peoples R China.

[Chen, Xiaoqiang; Cheng, Shuiyuang] Wuhan Polytech Univ, Sch Life Sci & Technol, Wuhan, Peoples R China.

[Huang, Wei] Hubei Inst Drug Control, Food & Cosmet Testing Res Ctr, Innovat Dev Serv Platform, Wuhan, Peoples R China.

[Liu, Zhong] Hubei August Flower Food Co Ltd, Tech Res Ctr, Xianning, Peoples R China.

[Chen, Xiaoqiang] Hubei Univ Technol, Minist Educ, Cooperat Innovat Ctr Ind Fermentat,Key Lab Ferment, Minist Educ & Hubei Prov,Natl Ctr Cellular Regulat, Wuhan 430068, Peoples R China.

通讯机构：

[Chen, XQ ] H

Hubei Univ Technol, Minist Educ, Cooperat Innovat Ctr Ind Fermentat,Key Lab Ferment, Minist Educ & Hubei Prov,Natl Ctr Cellular Regulat, Wuhan 430068, Peoples R China.

Wuhan Polytech Univ, Sch Life Sci & Technol, Wuhan 430023, Peoples R China.

语种：

英文

关键词：

complex;physicochemical properties;tea polysaccharide conjugates;theabrownins

期刊：

Journal of the Science of Food and Agriculture

ISSN：

0022-5142

年：

2024

DOI：

10.1002/jsfa.13431

基金类别：

National Natural Science Foundation of China; [31871813]

机构署名：

本校为通讯机构

摘要：

BACKGROUND: Theabrownins (TBs) are one of most important quality components in dark tea, but have not been produced industrially. In this study, the aqueous extract was obtained from Pu-erh ripe tea, one kind of dark tea. Caffeine, theaflavin, catechin and saponin were removed by trichloromethane, ethyl acetate and n-butanol in turn to obtain a TB isolate. The TB isolate was subjected to column chromatography using a macroporous resin HPD-750 and eluted with a gradient of 0-700 g kg(-1) ethanol aqueous solution. Four fractions were obtained, ...

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Theabrownins in dark tea form complexes with tea polysaccharide conjugates

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