alexa Metaproteomic Characterization of Daqu, a Fermentation Starter Culture of Chinese Liquor
ISSN: 0974-276X

Journal of Proteomics & Bioinformatics
Open Access

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Short Communication

Metaproteomic Characterization of Daqu, a Fermentation Starter Culture of Chinese Liquor

Chongde Wu1,2*, Jingcheng Deng1, Guiqiang He1 and Rongqing Zhou1

1College of Light Industry, Textile and Food Engineering, and Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China

2Liquor Making Biological Technology and Application of Key Laboratory of Sichuan Province, Zigong 64300, China

*Corresponding Author:
Chongde Wu
College of Light Industry
Textile and Food Engineering
Sichuan University, Chengdu 610065, China
Tel: +86-28-85406149
Fax: +86-28-85405237
E-mail: [email protected]

Received Date: December 28, 2015; Accepted Date: February 22, 2016; Published Date: February 27, 2016

Citation: Wu C, Deng J, He G, Zhou R (2016) Metaproteomic Characterization of Daqu, a Fermentation Starter Culture of Chinese Liquor. J Proteomics Bioinform 9:049-052. doi:10.4172/jpb.1000388

Copyright: © 2016 Wu C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Daqu is an essential fermentation starter for the prodcution of Chinese liquor, and it is closely related to the quality and yield of liquor. The aim of this study was to investigate the microbial community of Daqu by using the metaproteomic approach. A total of 45 protein spots in the two-dimensional electophoresis gel were excised and identified. Seventeen protein spots represent 16 proteins that originate from the secretion of bacteria, yeast, and filamentous fungi. Moreover, Nitrobacter winogradskyi, Agrobacterium tumefaciens and Neurospora crassa were first identified in Daqu. To the best of our knowledge, this is the first report on the community structure of Chinese liquor Daqu through metaproteomic analysis. Results presented in this study may further elucidate the microbial community structure in Daqu and may facilitate the development of Daqu for the manufacture of Chinese liquor.


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