研究报告

酱香型白酒下、造沙轮次酿造过程中有机酸的变化规律及其关联性分析

  • 赵雯宇 ,
  • 谢丹 ,
  • 吴成 ,
  • 朱安然 ,
  • 路虎 ,
  • 胡建锋 ,
  • 胡峰 ,
  • 万波
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  • 1(贵州习酒股份有限公司,贵州 习水,564622)
    2(国家市场监管总局重点实验室(酱香型白酒品质与安全),贵州 贵阳,550000)
    3(贵州省酱香型白酒技术创新中心,贵州 习水,564622)
    4(中国轻工业酱香型白酒智能酿造工程技术研究中心,贵州 习水,564622)
    5(贵州省白酒制造业创新中心,贵州 仁怀,564500)
第一作者:硕士,助理工程师(万波高级工程师为通信作者,E-mail:wanbo1122xj@163.com)

收稿日期: 2025-07-31

  修回日期: 2025-09-15

  网络出版日期: 2026-05-07

基金资助

贵州省科技支撑计划项目(黔科合支撑[2023]一般342,黔科合支撑[2023]一般343,黔科合支撑[2024]一般030);贵州省市场监管局质量发展项目(黔质量发展项目(2024)3号(重点));遵义市科技计划项目(遵市科合支撑[2024]20号);贵州省酱香型白酒技术创新中心(黔科合平台JSZX〔2025〕002)

Analysis of variation patterns and correlations of organic acids during the Xiasha and Zaosha brewing rounds of Jiang-flavor Baijiu

  • ZHAO Wenyu ,
  • XIE Dan ,
  • WU Cheng ,
  • ZHU Anran ,
  • LU Hu ,
  • HU Jianfeng ,
  • HU Feng ,
  • WAN Bo
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  • 1(Guizhou Xijiu Co.Ltd., Xishui 564622, China)
    2(Key Laboratory of Quality and Safety of Jiangxiangxing Baijiu, State Administration for Market Regulation, Guiyang 550000, China)
    3(Guizhou Technology Innovation Center of Jiangxiangxing Baijiu, Xishui 564622, China)
    4(Engineering Technology Research Center for Intelligent Brewing of Jiangxiangxing Baijiu, China National Light Industry Council, Xishui 564622, China)
    5(Manufacturing Innovation Center for Baijiu, Guizhou Province, Renhuai 564500, China)

Received date: 2025-07-31

  Revised date: 2025-09-15

  Online published: 2026-05-07

摘要

下、造沙轮次是酱香型白酒的酿造开端,与一轮次基酒的特征酸香息息相关。该研究聚焦酱香型白酒下、造沙轮次,以高粱、母曲、母糟及糟醅为研究对象,采用气相色谱、高效液相色谱、高通量测序等技术,并结合多元统计方法,解析有机酸变化规律及其关联机制。结果表明,除高粱可带入少量有机酸外,多数有机酸在糟醅发酵中生成且含量随酿造进程增加,其中乳酸、乙酸占比最高,并在窖池发酵阶段大量积累。与糟醅相比,母曲、母糟中游离氨基酸更为丰富,并以酸性氨基酸天冬氨酸和谷氨酸为主,占氨基酸总量的26.85%~44.61%,是一轮次酒中酸香特征的重要前体物质。随着发酵推进,微生物丰富度提升,未分类乳杆菌属(unclassified_Lactobacillaceae)、枝芽孢杆菌属(Virgibacillus)、叶绿体门未分类菌属(norank_Chloroplast)、魏斯氏菌属(Weissella)、克罗彭斯特菌属(Kroppenstedtia)及芽孢杆菌属(Bacillus)等分别是高粱、母曲、母糟及糟醅中的优势细菌属,可通过多种代谢途径参与有机酸的生成,其中碳水化合物代谢和氨基酸代谢是酿造过程中的主要代谢途径,相关性分析表明“氨基酸-微生物-有机酸”间存在多重关联,除胱氨酸与蛋氨酸外,所有氨基酸均与枝芽孢杆菌属、海洋芽孢杆菌属(Oceanobacillus)和克罗彭斯特菌属等呈显著负相关;乳杆菌属(Lactobacillus)等多种酿造优势细菌属与乳酸、乙酸、丙酸等有机酸呈显著正相关。本研究系统分析了下、造沙轮次酿造过程有机酸的变化规律,构建了氨基酸、微生物和有机酸的关联性,为酱香一轮次基酒酸香风味的形成机制提供理论依据。

本文引用格式

赵雯宇 , 谢丹 , 吴成 , 朱安然 , 路虎 , 胡建锋 , 胡峰 , 万波 . 酱香型白酒下、造沙轮次酿造过程中有机酸的变化规律及其关联性分析[J]. 食品与发酵工业, 2026 , 52(8) : 159 -169 . DOI: 10.13995/j.cnki.11-1802/ts.044098

Abstract

Xiasha and Zaosha rounds are the beginning of the brewing of the Jiangxiangxing-Baijiu, and it is closely related to the characteristic sour and fragrant flavor of the first-round base liquor.This study focused on two rounds in the production of Jiangxiangxing Baijiu.Taking sorghum, muqu, muzao and fermented grains as the research objects.Gas chromatography, high-performance liquid chromatography, and high-throughput sequencing techniques, etc.were applied, combining with multivariate statistical methods, to analyze the variation patterns of organic acids and their associated mechanisms.Results showed that sorghum contributed only a small amount of organic acids.Most organic acids were formed during fermentation, and their content increased with the brewing process.Among them, lactic acid and acetic acid accounted for the highest proportions.They accumulated significantly during pit fermentation.Compared with fermented grains in the brewing process, raw materials contained more abundant free amino acids.These were dominated by acidic amino acids aspartic acid and glutamic acid, which made up 26.85% to 44.61% of total amino acids.They served as important precursors for the acid aroma characteristics in the first-round liquor.As brewing progresses, microbial richness gradually increased.Dominant genera in raw materials and fermented grains included unclassified_Lactobacillaceae, Virgibacillus, norank_Chloroplast, Weissella, Kroppenstedtia, and Bacillus.These genera participated in organic acid production through multiple metabolic pathways.Carbohydrate metabolism and amino acid metabolism were the main metabolic pathways in brewing, which confirmed multiple correlations among “amino acids-microorganisms-organic acids”.Specific manifestations included:All amino acids, except cystine and methionine, showing a significant negative correlation with Virgibacillus, Oceanobacillus, Kroppenstedtia, etc.Various dominant bacterial genera, such as Lactobacillus showed a significant positive correlation with organic acids like lactic acid, acetic acid, and propionic acid.This study systematically analyzed the variation patterns of organic acids during the Xiasha and Zaosha rounds.It also explored correlations from the perspectives of amino acids and microorganisms.This study provided a scientific basis for the formation mechanism of the acid aroma in the first-round Jiangxiangxing Baijiu.

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