随机和决定性过程塑造了微生物群和造过程中从不同小麦品种制成的强烈风味的Daqu的风味
Kangjie Yu1, Rong Yang2, Huiling Huang2
1College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Sichuan Province Engineering Technology Research Center of Liquor-Making Grains, School of Food and Liquor Engineering, Sichuan University of Science and Engineering, Yibin 644000, PR China.
Food research international (Ottawa, Ont.)
|March 7, 2026
概括
小麦品种通过改变微生物群落和风味化合物,显著影响达克发酵. 不同的小麦类型导致独特的微生物网络和挥发性配置文件,影响DAQ质量.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 发酵技术的发酵技术
背景情况:
- 达库是发酵食品的重要起始品种,主要由小麦生产.
- 小麦品种的特点显著影响达库的微生物社区结构和发酵效率.
- 关于微生物群落形成的机制及其与不同小麦品种的Daqu发酵过程中的挥发性化合物之间的联系的研究有限.
研究的目的:
- 为了研究不同小麦品种 (Mianmai 902, Chuanmai 93, Zhongke Mai 47) 对达库发酵的影响.
- 分析这些小麦品种的物理,化学和初始微生物特性.
- 系统地检查Daqu发酵过程中的微生物继承和挥发性化合物变化.
主要方法:
- 分析了三种小麦品种的物理和化学特性.
- 初始微生物群落的表征.
- 在DAQ发酵过程中监测微生物继承和挥发性化合物变化.
- 应用随机森林和ICAMP模型进行数据分析.
主要成果:
- 在小麦品种之间观察到物理化学性质和初始微生物群落的显著差异.
- 不同的微生物社区结构和发酵特征受到小麦品种的影响.
- 生物标志物识别揭示了品种特定的微生物网络 (例如,Mianmai 902细菌,Chuangmai 93真菌).
- 确定了微生物组合中的"二元分化" (细菌随机,真菌决定性),生态漂移和同质传播发挥了关键作用.
- 小麦内性细菌 (Paenibacillus,Pseudomonas) 和真菌 (Fusarium) 与小麦水分和氨酸含量一起,显著影响了社区的形成.
结论:
- 小麦品种是塑造达库微生物生态和挥发性化合物特征的关键因素.
- 了解小麦特定的微生物组装机制对于优化Daqu发酵至关重要.
- 内生菌微生物和小麦的物理化学特性是达克发酵的关键调节者.
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