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基于化乳酸细菌的联合体的构建和代谢学
Cheng Zong1, Longxin Wang1, Jie Zhao1
1Institute of Ensiling and Processing of Grass, College of Agro-grassland Science, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China.
Journal of applied microbiology
|July 23, 2025
概括
研究人员构建了五个基于乳酸细菌 (LAB) 的联盟,具有高酸性能力. 代谢分析显示,在这些不同的LAB联盟中,氨基酸和B组维生素水平存在差异.
科学领域:
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
- 发酵技术的发酵技术
背景情况:
- 乳酸细菌 (LAB) 对于料发酵至关重要.
- 开发有效的LAB联盟可以提高料质量和营养价值.
- 了解LAB联盟的代谢概况是优化发酵的关键.
研究的目的:
- 构建和分析化衍生乳酸细菌 (LAB) 基的联盟的新陈代谢.
- 评估已建的LAB联盟的酸化能力和发酵性能.
- 为了确定不同生物多样性的LAB联盟之间的关键代谢差异.
主要方法:
- 隔离和选择来自不同种类的代表性LAB菌株.
- 建立五个LAB联盟 (4-8种) 基于非对抗性和酸化潜力.
- 通过pH,乳酸盐和酸盐水平来表征酸化.
- 非向的代谢分析,以确定差异化代谢物和途径.
主要成果:
- 成功构建了五个具有多样化的生物多样性和高酸化能力 (pH 3.60-3.71) 的LAB联盟.
- 财团证明了优越的发酵性能,而不是青汁发酵.
- 代谢分析显示,在6种氨基酸和5种B组维生素中,在联盟中存在显著差异.
- 确定了与氨基酸和维生素代谢相关的关键代谢途径.
结论:
- 开发了五个具有高酸化潜力的LAB联盟.
- 在这些群体中存在显著的代谢变异,特别是在氨基酸和B组维生素中.
- 代谢学为LAB联盟的功能差异提供了洞察力,有助于选择最佳的菌株用于料生产.
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