Influence of thermophilic microorganism on non-volatile metabolites during high-temperature pile-fermentation of Chinese dark tea based on metabolomic analysis

文献类型： 外文期刊

第一作者： Zhu, Wen

作者： Zhu, Wen;Wang, Wenfeng;Xu, Wencan;Wu, Shuang;Chen, Wenjun;Huang, Youyi;Zhu, Wen;Wang, Wenfeng;Xu, Wencan;Wu, Shuang;Chen, Wenjun;Huang, Youyi;Wang, Shengpeng

作者机构：

关键词： Thermophilic microorganism; High-temperature; Chinese dark tea; Pile-fermentation; Nontargeted metabolomic analysis

期刊名称：FOOD SCIENCE AND BIOTECHNOLOGY （ 影响因子：3.231； 五年影响因子：2.925 ）

ISSN： 1226-7708

年卷期： 2022 年 31 卷 7 期

页码：

收录情况： SCI

摘要： Pile-fermentation is a critical procedure for producing Chinese dark tea, during which thermophilic microorganisms would play an irreplaceable role. However, there have been little researches on the influences of thermophilic microorganism pile-fermentation (TMPF) in high-temperature of Chinese dark tea. Thus, we conducted high-performance liquid chromatography and nontargeted metabolomic to analyze the non-volatile metabolites of TMPF. Our results discovered that the amounts of ( -)-epigallocatechin gallate, ( -)-epigallocatechin, ( -)-epicatechin gallate, and ( -)-epicatechin were decreased significantly (p < 0.05) after TMPF. By using nontargeted metabolomic analysis, a total of 1733 ion features were detected. KEGG pathway enrichment analysis showed that TMPF had a significant impact on caffeine metabolism. Also, theophylline, 3-methylxanthine, and 1,3,7-trimethyluric acid were increased significantly after TMPF, which suggested that demethylation and oxidation reaction might be the main pathways of caffeine metabolism. This study provides a better understanding of the mechanism of TMPF during high-temperature for Chinese dark tea and lays a foundation for further research.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序