Dynamic changes of total acid and bacterial communities during the traditional fermentation of Hong Qu glutinous rice wine
文献类型： 外文期刊
作者： Liang, Zhangcheng 1 ; Lin, Xiaozi 1 ; He, Zhigang 1 ; Li, Weixin 1 ; Ren, Xiangyun 1 ; Lin, Xiaojie 1 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Agr Engn Technol, Fuzhou, Fujian, Peoples R China
2.Fujian Key Lab Agr Prod Food Proc, Fuzhou, Fujian, Peoples R China
关键词： Acetobacter; Bacterial communities; Glutinous rice wine; Hierarchical clustering analysis; Lactobacillus; Pediococcus; Principal component analysis; Total acid production; Traditional fermentation
期刊名称：ELECTRONIC JOURNAL OF BIOTECHNOLOGY （ 影响因子：2.8； 五年影响因子：3.379 ）
ISSN： 0717-3458
年卷期： 2020 年 43 卷
页码：
收录情况： SCI
摘要： Background: Hong Qu glutinous rice wine (HQGRW) is brewed under non-aseptic fermentation conditions, so it usually has a relatively high total add content. The aim of this study was to investigate the dynamics of the bacterial communities and total acid during the fermentation of HQGRW and elucidate the correlation between total acid and bacterial communities. Results: The results showed that the period of rapid add increase during fermentation occurred at the early stage of fermentation. There was a negative response between total acid increase and the rate of increase in alcohol during the early fermentation stage. Bacterial community analysis using high-throughput sequencing technology was found that the dominant bacterial communities changed during the traditional fermentation of HQGRW. Both principal component analysis (PCA) and hierarchical clustering analysis revealed that there was a great difference between the bacterial communities of Hong Qu starter and those identified during the fermentation process. Furthermore, the key bacteria likely to be associated with total acid were identified by Spearman's correlation analysis. Lactobacillus, unclassified Lactobacillaceae, and Pediococcus were found, which can make significant contributions to the total acid development (vertical bar r vertical bar > 0.6 with FDR adjusted P < 0.05), establishing that these bacteria can associate closely with the total acid of rice wine. Conclusions: This was the first study to investigate the correlation between bacterial communities and total acid during the fermentation of HQGRW. These findings may be helpful in the development of a set of fermentation techniques for controlling total add. (C) 2019 Pontificia Universidad Catolica de Valparaiso. Production and hosting by Elsevier B.V. All rights reserved.
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