来自Tremella fuciformis的新型多糖体的结构特征及其与肠道微生物群的相互作用
Haizhao Song1, Jing Lu1, Qiang Chu2
1College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China.
Journal of the science of food and agriculture
|March 23, 2024
概括
这项研究描述了Tremella fuciformis多糖体PTP-3a的特征,揭示了其作为益生菌的潜力. PTP-3a调节了肠道微生物群的组成,并在体外促进了有益细菌的生长.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 生物化学 生物化学
背景情况:
- 的多糖体表现出多样化的生物活动.
- 对它们的应用越来越感兴趣,因此需要对其结构和功能进行描述.
- 这项研究的重点是从T. fuciformis.中提取的纯化多糖,PTP-3a.
研究的目的:
- 从结构上描述由T. fuciformis.衍生出的PTP-3a.
- 为了研究PTP-3a与肠道微生物群的体外相互作用.
- 为了评估PTP-3a作为益生菌的潜力.
主要方法:
- 结构分析包括分子量测定和单糖组成.
- 使用甲基化和GC-MS进行链接类型分析.
- 在体外发酵测试用便微生物群.
- 对短链脂肪酸生产和微生物群落转移的分析.
主要成果:
- PTP-3a (1220 kDa) 包含具有特定链接的福克,葡萄糖,西洛,曼诺和葡萄糖酸.
- 它表现出热稳定性和三螺旋结构.
- 试管发酵显示了PTP-3a的利用,SCFA的产生,以及Firmicutes/Bacteroidetes比率的调节.
- PTP-3a促进了有益细菌如Parabacteroides和Bifidobacterium的生长.
结论:
- PTP-3a具有适用于 prebiotika 应用的结构特征.
- 它在体外有效调节肠道微生物群的组成和功能.
- PTP-3a显示出作为肠道健康的益生菌剂的显著潜力.
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