Tea polyphenol epigallocatechin gallate inhibits Escherichia coli by increasing endogenous oxidative stress

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期刊论文

作者：

Xiong, Li-Gui;Chen, Yi-Jun;Tong, Jie-Wen;Huang, Jian-An;Li, Juan;...

通讯作者：

Gong, Yu-Shun;Liu, Zhong-Hua

作者机构：

[Gong, Yu-Shun; Huang, Jian-An; Liu, Zhong-Hua; Xiong, Li-Gui; Chen, Yi-Jun; Li, Juan; Tong, Jie-Wen] Hunan Agr Univ, Minist Educ, Key Lab Tea Sci, Changsha 410128, Hunan, Peoples R China.

[Liu, Zhong-Hua; Xiong, Li-Gui] Hunan Agr Univ, Natl Res Ctr Engn Technol Utilizat Funct Ingredie, Changsha 410128, Hunan, Peoples R China.

[Huang, Jian-An; Liu, Zhong-Hua; Xiong, Li-Gui; Li, Juan] Hunan Agr Univ, Collaborat Innovat Ctr Utilisat Funct Ingredients, Changsha 410128, Hunan, Peoples R China.

通讯机构：

[Gong, Yu-Shun; Liu, Zhong-Hua] H

Hunan Agr Univ, Minist Educ, Key Lab Tea Sci, Changsha 410128, Hunan, Peoples R China.

Hunan Agr Univ, Natl Res Ctr Engn Technol Utilizat Funct Ingredie, Changsha 410128, Hunan, Peoples R China.

语种：

英文

关键词：

Adaptive response;Antibacterial;Epigallocatechin gallate;Escherichia coli;Reactive oxygen species

期刊：

Food Chemistry

ISSN：

0308-8146

年：

2017

卷：

217

页码：

196-204

DOI：

10.1016/j.foodchem.2016.08.098

基金类别：

The authors acknowledge the National Natural Science Foundation of China (No. 31270733 ), the National Tea Industry Technical System Project of China ( CARS-23-11B ), the Project of Education Department in Hunan Province ( 12W005 ), the Synergistic and Innovative Research Projects for Utilization of Botanical Functional Ingredients ( HNCR-2014003 ), and the Graduate Student Innovative Research Projects in Hunan Province ( CX2014B301 ) for financial support.

机构署名：

本校为第一且通讯机构

院系归属：

园艺园林学院

摘要：

The antibacterial effects of tea polyphenol epigallocatechin gallate (EGCG), a common phytochemical with a number of potential health benefits, are well known. However, the mechanism of its bactericidal action remains unclear. Using E. coli as a model organism, it is argued here that H2O2 synthesis by EGCG is not attributed to its inhibitory effects. In contrast, the bactericidal action of EGCG was a result of increased intracellular reactive oxygen species and blunted adaptive oxidative stress response in E. coli due to the co-administration o...

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Tea polyphenol epigallocatechin gallate inhibits Escherichia coli by increasing endogenous oxidative stress

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