在Fagopyrum tataricum Baijiu发酵过程中微生物群落和风味质量之间的动态变化和相关性的分析
Xiaomin Liu1,2, Dangwei Zhang1, Yuxia Liu1
1School of Liquor and Food Engineering, Guizhou University, Guiyang, 550025 China.
Food science and biotechnology
|May 12, 2025
概括
在Fagopyrum tataricum Baijiu的发酵谷物中的微生物继承包括Lactobacillus取代其他细菌. 这种转变影响了谷物特性和关键的挥发性化合物,改善了Baijiu的质量.
科学领域:
- 微生物学 微生物学
- 发酵科学 发酵科学
- 食品化学 食品化学
背景情况:
- 发酵谷物 (FG) 在中国传统酒精生产中至关重要,特别是Fagopyrum tataricum Baijiu.
- 了解微生物动态及其对FG成分的影响对于质量控制和改进至关重要.
研究的目的:
- 为了阐明在Fagopyrum tataricum发酵过程中微生物群落的继承.
- 研究这些微生物变化对FG中的物理化学参数和挥发性化合物的影响.
- 建立一个理论基础,提高Fagopyrum tataricum Baijiu.cum的质量.
主要方法:
- 在坦克发酵 (TF) 期间分析微生物群落结构.
- 测量物理化学参数 (粉,pH,酸度,水分,可减糖).
- 使用气色谱-质谱法 (GC-MS) 识别和量化挥发性化合物.
- 微生物群落,物理化学性质和挥发性化合物之间的相关性分析.
- 构建代谢网络以预测代谢途径.
主要成果:
- 确定了14种主要的微生物,乳酸菌逐渐取代了韦塞拉和细菌,而树脂菌正在下降.
- 观察到物理化学参数的显著变化:粉和pH值下降,酸度和湿度增加,以及降解糖的波动.
- 检测到64种挥发性化合物,包括14种主要化合物,如乙烯棕酸盐,乙烯酸盐和乙醇,这些化合物显著增加.
- 发现乳酸菌和菌有显著影响物理化学性质和挥发性化合物 (P < 0.05).
结论:
- 微生物的继承,特别是乳酸菌的优势,在塑造Fagopyrum tataricum FG.的特征方面发挥着至关重要的作用.
- 特定的微生物转移与物理化学性质的理想变化以及关键挥发性芳香化合物的积累有关.
- 这项研究提供了关于FG发酵的宝贵见解,并为优化Fagopyrum tataricum Baijiu生产提供了科学基础.
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