有益的益生菌在沙特阿拉伯不同哺乳期驼牛奶中普遍存在
Abdullah Sheikh1, Hairul Islam Mohamed Ibrahim2,3, Faisal Almathen1,4
1Camel Research Center, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia.
Saudi journal of biological sciences
|December 13, 2023
概括
驼牛奶是什么 驼牛奶是什么
科学领域:
- 微生物学与食品科学 微生物学与食品科学
- 驼研究研究 驼研究
- 益生菌细菌 发现 发现
背景情况:
- 大象驼的牛奶在经济上很重要,富含营养和有益的乳酸细菌.
- 驼奶的微生物组组成可以根据哺乳阶段显著变化.
- 了解这些微生物差异是识别潜在益生菌的关键.
研究的目的:
- 为了比较驼乳中存在的益生菌细菌,从早期哺乳期 (一周) 与晚期哺乳期 (一年) 相比.
- 在基因组分析的基础上区分潜在的益生菌菌株.
- 描述已识别的微生物群落的功能作用.
主要方法:
- 对16S rRNA的转基因组学分析是在原始驼牛奶样本上进行的.
- 分析了两个组:哺乳期一年 (A) 和哺乳期一周 (B) 的驼牛奶 (每组n=10).
- 使用Card,COG,NOG和Swiss-prot数据库进行了功能注释的评估.
主要成果:
- 总共有276个物种被确定,其中B组 (一周的哺乳期) 与A组 (56个物种) 相比,表现出更高的多样性 (220个物种).
- 蛋白质菌在B组占主导地位 (75%),而阿斯科米科塔,维鲁科米克罗比亚和菲尔米库特在A组更为丰富.
- 发现的关键潜在的益生菌包括Enterococcus faecalis,Enterococcus faecium,Propionibacterium,Streptococcus thermophilus,Solibacillus silvestris和Akkermansia muciniphila. 这三种细菌是最常见的.
结论:
- 哺乳期对大驼驼奶的微生物成分有很大的影响.
- 早期哺乳期的驼奶含有更多样化的微生物群,含有更多的潜在益生菌物种.
- 尽管有有益的细菌,但也检测到致病性微生物,需要在消费前进行适当的灭菌.
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