Study on differences in fermented grains across different fermentation rounds of Jiangxiangxing Baijiu

  • FU Qingkai ,
  • CHEN Fan ,
  • MENG Tinglin ,
  • WEN Shangyu ,
  • HUANG Shangchuan ,
  • YANG Jianmei ,
  • HUANG Xiaoping ,
  • CHEN Shuang
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  • 1(Jinpai Moutai Town Liquor Co.Ltd., Renhuai 564500, China)
    2(Jin Brand Co.Ltd.,Huangshi 435100, China)
    3(School of Bioengineering, Jiangnan University, Wuxi 214000, China)

Received date: 2024-09-03

  Revised date: 2025-01-23

  Online published: 2025-10-16

Abstract

This study conducted a comprehensive analysis of the physicochemical properties, microbial indicators, dissolved oxygen levels, and enzymatic activity of the fermented grains during the sorghum-first addition to sixth rounds of stacking fermentation for Jiangxiangxing Baijiu from Jinpai Moutai Town Liquor.The aim was to investigate the variation characteristics of these indices during different rounds of stacking fermentation in Jiangxiangxing Baijiu production.Results indicated significant physicochemical differences in the fermented grains across different fermentation rounds, as well as notable variations within the same round under different production modes.Both moisture and acidity levels in the fermented grains increased with successive rounds.Controlling moisture effectively reduced acidity generation, thereby lowering the acidic compounds in the base liquor and preventing excessive acidity from affecting its quality.Starch content showed a decreasing trend with increasing fermentation rounds, while reducing sugar content first increased and then decreased, peaking during the third and fourth rounds.Additionally, the study found that secondary turning of the stack increased microbial content in the fermented grains, particularly aerobic yeasts.Moderately increasing the initial stack temperature, without compromising fermentation quality, could shorten fermentation time by 1-3 days.These findings provided valuable data for optimizing stacking fermentation processes in Jiangxiangxing Baijiu production and offered a reference for advancing intelligent and digitalized brewing techniques.

Cite this article

FU Qingkai , CHEN Fan , MENG Tinglin , WEN Shangyu , HUANG Shangchuan , YANG Jianmei , HUANG Xiaoping , CHEN Shuang . Study on differences in fermented grains across different fermentation rounds of Jiangxiangxing Baijiu[J]. Food and Fermentation Industries, 2025 , 51(18) : 322 -329 . DOI: 10.13995/j.cnki.11-1802/ts.040940

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