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Bacterial succession and the dynamics of flavor compounds in the Huangjiu fermented from corn

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Abstract

Huangjiu is one of the Chinese unique and traditional liquor. Corn is a kind of high yield crop in China, which has the characteristics of wide distribution, low price and high starch content. Fermenting Huangjiu with corn not only enrich Huangjiu types, but also opens up a new way for the utilization of corn. The flavor compounds and microorganisms in corn wine fermentation were studied in this study. A total of 98 volatile compounds and 8 kinds of organic acids were detected. Bacillus, Weissella, Streptomyces, Aeromonas and Blautia were the dominant bacteria. The correlation analysis between flavor compounds and bacteria showed that there were 557 correlations between major flavor compounds and bacteria. Among them, Lactococcus, Virgibacillus, Sphingobacterium and Sporolactobacillus were dominant genus of flavor producing bacteria. This study may reveal the changing rule of bacteria in Huangjiu, predict the relationship between metabolites and bacteria. In addition, this study expanded the application of corn and increased the variety of Huangjiu.

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Abbreviations

HPLC:

High performance liquid chromatography

HS-SPME:

Headspace solid phase microextraction

GC–MS:

Gas chromatography mass spectrometer

O2PLS:

Bidirectional orthogonal partial least squares

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Acknowledgements

We sincerely thank the great technical help from Professor Xueli Cao with preparing HS-SPME and GC–MS.

Funding

This work was supported by Post: China millet and sorghum research system sorghum product processing (Number: CARS-06–13.5-A30); This work supported by Youth Funding of Beijing Technology and Business University (PXM2019_014213_000007); The Beijing Technology and Business University Graduate Research Capacity Improvement Program in 2019.

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Contributions

Q.R. and J.L.X.; Methodology, L.P.S.; Writing – Original Draft Preparation, Z.B.S.; Writing – Review & Editing, Z.P.L.; Visualization, X. L.; Supervision, Q.S. L.; Funding Acquisition.

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Correspondence to Jialiang Xu.

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The authors declare no competing financial interest.

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Communicated by Erko Stackebrandt.

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Ren, Q., Sun, L., Sun, Z. et al. Bacterial succession and the dynamics of flavor compounds in the Huangjiu fermented from corn. Arch Microbiol 202, 299–308 (2020). https://doi.org/10.1007/s00203-019-01748-3

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  • DOI: https://doi.org/10.1007/s00203-019-01748-3

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