通过细菌体 spp. 的利用. 来自富川茶的纯化多糖的纯化多糖
Jiameng Shi1, Wangting Zhou1, Guijie Chen1
1College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
Foods (Basel, Switzerland)
|June 19, 2024
概括
人体便中的四种细菌类可以降解福州茶多糖-3 (FBTPS-3). 这表明FBTPS-3可以作为有益的肠道健康的益生菌,促进有益细菌的生长.
科学领域:
- 微生物学 微生物学
- 肠道微生物组研究研究
- 饮食中的多糖代谢
背景情况:
- 福州茶含有独特的多糖体 (FBTPS-3),具有潜在的健康益处.
- 人的肠道微生物群,特别是 Bacteroides 种类,在多糖化物消化中起着至关重要的作用.
- 了解FBTPS-3和肠道细菌之间的相互作用对于开发功能性食品至关重要.
研究的目的:
- 识别能够降解福州茶多糖-3 (FBTPS-3) 的肠道细菌.
- 调查这些细菌对FBTPS-3的代谢潜力.
- 探索FBTPS-3作为一种针对肠道微生物群的益生菌的潜力.
主要方法:
- 从人类便中分离和识别细菌类物种.
- 使用FBTPS-3作为唯一的碳来源种植Bacteroides物种.
- 分析FBTPS-3的利用和短链脂肪酸的生产.
- 对Bacteroides ovatus的转录组分析以确定相关的基因和途径.
主要成果:
- 四种细菌体物种 (B. (B. ovatus,B. uniformis,B. fragilis,B. thetaiotaomicron) 被确定为FBTPS-3的降解物.
- 一个B. B. B. B. 在24小时内,FBTPS-3的利用效率最高.
- 这些细菌对FBTPS-3的代谢导致了酸,酸和异酸的产生.
- 转录组分析显示FBTPS-3在B.B.中升调的基因. ovatus,包括碳水化合物活性酶集群和多糖利用位点 (PUL).
- 鉴定了含有GH28家族酶的PUL1,与FBTPS-3的rhamnogalacturonan和pectic成分一致.
结论:
- 在人类肠道中发现的几个关键的细菌体物种很容易利用FBTPS-3.
- FBTPS-3由细菌体 spp. 的降解. 结果有利于短链脂肪酸的生产.
- 在肠道环境中,FBTPS-3显示出作为一种针对 Bacteroidetes 类的益生菌的潜力.
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