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Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu

Rice-flavor baijiu is one of the four basic flavor types of Chinese baijiu. Microbial composition plays a key role in the classification of baijiu flavor types and the formation of flavor substances. In this study, we used high-throughput sequencing technology to study the changes of microbial commu...

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Autores principales: Hu, Yuanliang, Lei, Xinyi, Zhang, Xiaomin, Guan, Tongwei, Wang, Luyao, Zhang, Zongjie, Yu, Xiang, Tu, Junming, Peng, Nan, Liang, Yunxiang, Zhao, Shumiao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8116502/
https://www.ncbi.nlm.nih.gov/pubmed/33995338
http://dx.doi.org/10.3389/fmicb.2021.673670
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author Hu, Yuanliang
Lei, Xinyi
Zhang, Xiaomin
Guan, Tongwei
Wang, Luyao
Zhang, Zongjie
Yu, Xiang
Tu, Junming
Peng, Nan
Liang, Yunxiang
Zhao, Shumiao
author_facet Hu, Yuanliang
Lei, Xinyi
Zhang, Xiaomin
Guan, Tongwei
Wang, Luyao
Zhang, Zongjie
Yu, Xiang
Tu, Junming
Peng, Nan
Liang, Yunxiang
Zhao, Shumiao
author_sort Hu, Yuanliang
collection PubMed
description Rice-flavor baijiu is one of the four basic flavor types of Chinese baijiu. Microbial composition plays a key role in the classification of baijiu flavor types and the formation of flavor substances. In this study, we used high-throughput sequencing technology to study the changes of microbial community in the production of rice-flavor baijiu, and compared the microbial community characteristics during production of rice-, light-, and strong-flavor baijiu. The results showed that the species diversity of bacteria was much higher than that of fungi during the brewing of rice-flavor baijiu. The bacterial diversity index first increased and then decreased, while the diversity of fungi showed an increasing trend. A variety of major microorganisms came from the environment and raw rice materials; the core bacteria were Lactobacillus, Weissella, Pediococcus, Lactococcus, Acetobacter, etc., among which Lactobacillus was dominant (62.88–99.23%). The core fungi were Saccharomyces (7.06–83.50%) and Rhizopus (15.21–90.89%). Temperature and total acid content were the main physicochemical factors affecting the microbial composition. Non-metric multidimensional scaling analysis showed that during the fermentation of rice-, light-, and strong-flavor baijiu, their microbial communities formed their own distinct systems, with considerable differences among different flavor types. Compared with the other two flavor types of baijiu, in the brewing process of rice-flavor baijiu, microbial species were fewer and dominant microorganisms were prominent, which may be the main reason for the small variety of flavor substances in rice-flavor baijiu. This study provides a theoretical basis for the production of rice-flavor baijiu, and lays a foundation for studying the link between baijiu flavor formation and microorganisms.
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spelling pubmed-81165022021-05-14 Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu Hu, Yuanliang Lei, Xinyi Zhang, Xiaomin Guan, Tongwei Wang, Luyao Zhang, Zongjie Yu, Xiang Tu, Junming Peng, Nan Liang, Yunxiang Zhao, Shumiao Front Microbiol Microbiology Rice-flavor baijiu is one of the four basic flavor types of Chinese baijiu. Microbial composition plays a key role in the classification of baijiu flavor types and the formation of flavor substances. In this study, we used high-throughput sequencing technology to study the changes of microbial community in the production of rice-flavor baijiu, and compared the microbial community characteristics during production of rice-, light-, and strong-flavor baijiu. The results showed that the species diversity of bacteria was much higher than that of fungi during the brewing of rice-flavor baijiu. The bacterial diversity index first increased and then decreased, while the diversity of fungi showed an increasing trend. A variety of major microorganisms came from the environment and raw rice materials; the core bacteria were Lactobacillus, Weissella, Pediococcus, Lactococcus, Acetobacter, etc., among which Lactobacillus was dominant (62.88–99.23%). The core fungi were Saccharomyces (7.06–83.50%) and Rhizopus (15.21–90.89%). Temperature and total acid content were the main physicochemical factors affecting the microbial composition. Non-metric multidimensional scaling analysis showed that during the fermentation of rice-, light-, and strong-flavor baijiu, their microbial communities formed their own distinct systems, with considerable differences among different flavor types. Compared with the other two flavor types of baijiu, in the brewing process of rice-flavor baijiu, microbial species were fewer and dominant microorganisms were prominent, which may be the main reason for the small variety of flavor substances in rice-flavor baijiu. This study provides a theoretical basis for the production of rice-flavor baijiu, and lays a foundation for studying the link between baijiu flavor formation and microorganisms. Frontiers Media S.A. 2021-04-29 /pmc/articles/PMC8116502/ /pubmed/33995338 http://dx.doi.org/10.3389/fmicb.2021.673670 Text en Copyright © 2021 Hu, Lei, Zhang, Guan, Wang, Zhang, Yu, Tu, Peng, Liang and Zhao. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Hu, Yuanliang
Lei, Xinyi
Zhang, Xiaomin
Guan, Tongwei
Wang, Luyao
Zhang, Zongjie
Yu, Xiang
Tu, Junming
Peng, Nan
Liang, Yunxiang
Zhao, Shumiao
Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title_full Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title_fullStr Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title_full_unstemmed Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title_short Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
title_sort characteristics of the microbial community in the production of chinese rice-flavor baijiu and comparisons with the microflora of other flavors of baijiu
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8116502/
https://www.ncbi.nlm.nih.gov/pubmed/33995338
http://dx.doi.org/10.3389/fmicb.2021.673670
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