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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Main Authors: Yuanliang Hu, Xinyi Lei, Xiaomin Zhang, Tongwei Guan, Luyao Wang, Zongjie Zhang, Xiang Yu, Junming Tu, Nan Peng, Yunxiang Liang, Shumiao Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-04-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2021.673670/full
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author Yuanliang Hu
Yuanliang Hu
Yuanliang Hu
Xinyi Lei
Xiaomin Zhang
Xiaomin Zhang
Tongwei Guan
Luyao Wang
Zongjie Zhang
Xiang Yu
Junming Tu
Nan Peng
Yunxiang Liang
Shumiao Zhao
author_facet Yuanliang Hu
Yuanliang Hu
Yuanliang Hu
Xinyi Lei
Xiaomin Zhang
Xiaomin Zhang
Tongwei Guan
Luyao Wang
Zongjie Zhang
Xiang Yu
Junming Tu
Nan Peng
Yunxiang Liang
Shumiao Zhao
author_sort Yuanliang Hu
collection DOAJ
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 doaj.art-7fe3cea4a43f4b44b028a4ed320607d42022-12-21T19:03:05ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2021-04-011210.3389/fmicb.2021.673670673670Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of BaijiuYuanliang Hu0Yuanliang Hu1Yuanliang Hu2Xinyi Lei3Xiaomin Zhang4Xiaomin Zhang5Tongwei Guan6Luyao Wang7Zongjie Zhang8Xiang Yu9Junming Tu10Nan Peng11Yunxiang Liang12Shumiao Zhao13Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaState Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, ChinaHubei Engineering Research Center of Typical Wild Vegetable Breeding and Comprehensive Utilization Technology, Huangshi, ChinaHubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaState Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, ChinaGuangdong Deqing Incomparable Health Wine Co., Ltd., Zhaoqing, ChinaCollege of Food and Biological Engineering, Xihua University, Chengdu, ChinaHubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaHubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaHubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaHubei Key Laboratory of Edible Wild Plants Conservation and Utilization, College of Life Sciences, Hubei Normal University, Huangshi, ChinaState Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, ChinaState Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, ChinaState Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, ChinaRice-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.https://www.frontiersin.org/articles/10.3389/fmicb.2021.673670/fullbaijiufungal communitybacterial communityhigh-throughput sequencingbaijiu flavor
spellingShingle Yuanliang Hu
Yuanliang Hu
Yuanliang Hu
Xinyi Lei
Xiaomin Zhang
Xiaomin Zhang
Tongwei Guan
Luyao Wang
Zongjie Zhang
Xiang Yu
Junming Tu
Nan Peng
Yunxiang Liang
Shumiao Zhao
Characteristics of the Microbial Community in the Production of Chinese Rice-Flavor Baijiu and Comparisons With the Microflora of Other Flavors of Baijiu
Frontiers in Microbiology
baijiu
fungal community
bacterial community
high-throughput sequencing
baijiu flavor
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 baijiu
fungal community
bacterial community
high-throughput sequencing
baijiu flavor
url https://www.frontiersin.org/articles/10.3389/fmicb.2021.673670/full
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