在甜面粉发酵过程中微生物群落的动态变化及其与物理化学特性和挥发性化合物的相关性
Ziqing Sang1, Qiang Xie1, Chen Chen1
1College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China.
Journal of food science
|February 4, 2025
概括
这项研究揭示了关键的微生物参与者及其对传统中国甜面粉发酵的风味和质量的影响. 了解这些关系有助于优化发酵过程,以改善味道和营养价值.
科学领域:
- 食品微生物学 食品微生物学
- 发酵科学 发酵科学
- 生物技术是生物技术.
背景情况:
- 甜面粉是一种传统的中国发酵调料,具有独特的味道.
- 它的发酵涉及细菌,真菌和物理化学因素之间的复杂相互作用.
- 了解这些微生物动态对于质量控制和产品改进至关重要.
研究的目的:
- 在甜面粉的发酵过程中识别主导微生物.
- 调查微生物群落,物理化学指数 (总酸度,减糖,氨基酸) 和挥发性化合物之间的相关性.
- 为优化发酵过程提供理论基础.
主要方法:
- 微生物社区分析以确定主导的细菌和真菌种类.
- 在不同发酵阶段确定总酸度 (TA),氨基酸 (AAN) 和降解糖 (RS).
- 相关性网络分析,以确定微生物,物理化学指数和挥发性化合物之间的关系.
主要成果:
- 确定了主要的属:拉尔斯托尼亚,细菌;阿斯珀吉勒斯,伊萨琴基亚,克拉维斯波拉,齐戈萨克罗米塞斯 (真菌).
- TA,RS和AAN与特定微生物有显著的相关性.
- 属,特别是Clavispora和Zygosaccharomyces,与形成关键的风味挥发性化合物有着强烈的联系.
结论:
- 微生物代谢活动显著影响甜面粉的感觉和营养特性.
- 微生物,物理化学指数和挥发性化合物之间存在显著的相关性.
- 这些发现为调节发酵,提高产品质量和开发功能菌株提供了基础.
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