文献类型： 外文期刊
作者： Liang, Zhangcheng 1 ; Su, Hao 1 ; Lin, Xiaozi 1 ; He, Zhigang 1 ; Li, Weixin 1 ; Deng, Donglian 1 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Agr Engn Technol, 247 Wu Si Rd, Fuzhou 350003, Fujian, Peoples R China
2.Fujian Key Lab Agr Prod Food Proc, Fuzhou, Fujian, Peoples R China
关键词： Wuyi hong qu huangjiu; Key microbiota responsible for amino acids; Correlation analysis; Bitter taste; Fermentation temperature
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）
ISSN： 0023-6438
年卷期： 2020 年 130 卷
页码：
收录情况： SCI
摘要： Wuyi Hong Qu Huangjiu (WHQHJ) is produced in an open, non-sterile environment, but this can lead to a too bitter taste. The aim of this study was to determine the change of microbial communities and amino acids during traditional fermentation at different temperatures and elucidate the potential correlation between microbes and amino acids. The results showed that the bitter, sweet, umami, and astringent amino acid contents all tended to increase during fermentation. Temperature had an effect on amino acid content and bitter taste, and the higher the temperature, the greater the content of amino acids and perceptual intensity of bitterness. Microbiological analysis was performed using high-throughput sequencing technology based on rRNA gene sequencing. It demonstrated that there were significant differences between the fungal and bacterial communities during the fermentation process at 20 degrees C, 25 degrees C, and 30 degrees C based on both principal component analysis and hierarchical clustering analysis. A high correlation (vertical bar r vertical bar > 0.6, P < 0.05) between microbes and amino acids was determined by redundancy correlation, Spearman correlation and network analysis. Finally, six genus were the key microbes responsible for bitter amino acids during fermentation. To conclude, these findings show the importance of understanding the mechanism of bitter amino acid production.
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