丰富的多糖的结构特征和对肠道微生物群的调节效应 Auricularia auricula的肠道微生物群
Qin Shen1, Piao Pan1, Lele Lu1
1College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China.
Journal of food science
|November 8, 2025
概括
富含的Auricularia auricula (SAA) 多糖体对人类补充有很大的前景. 增强抗氧化能力和积极影响肠道微生物群的多样性和统一性.
科学领域:
- 菌类学 菌类学是指菌类学.
- 生物化学 生化学
- 微生物学 微生物学
背景情况:
- 耳 (Auricularia auricula,简称AA) 是补充的潜在天然来源.
- 用丰富的AA多糖 (SAA) 被制备和表征.
- 这项研究研究了SAA对肠道微生物群的结构性质和影响.
研究的目的:
- 准备和分析来自Auricularia auricula (SAA) 的丰富多糖的结构特征.
- 评估SAA对抗氧化能力和肠道微生物群组成的影响.
- 探索SAA作为补充剂的功能性食品成分的潜力.
主要方法:
- 用丰富的AA的制备和SAA的提取.
- 使用FT-IR和单糖化合物组成分析进行结构分析.
- 通过测量麦隆迪阿尔代海德 (MDA) 和超氧化物脱酶 (SOD) 水平来评估抗氧化活性.
- 在Drosophila模型中分析肠道微生物群组成.
主要成果:
- SAA的无机转化效率为88.90%,由6个单糖组成,分子量为3621.63kDa.
- FT-IR分析证实了SAA.中存在SeO和Se-O债券.
- 补充SAA导致MDA含量降低和SOD活性增加,表明抗氧化能力增强.
- SAA促进了有益的肠道细菌的生长,包括Bacteroidetes,Bifidobacteriaceae和Bifidobacterium.
结论:
- SAA具有显著的抗氧化特性,可以改善肠道微生物群结构.
- 酸显示出作为补充剂和肠道健康的功能成分的潜力.
- 这些发现强调了SAA在调节微生物群落和增强宿主健康方面的有效性.
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