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牛乳杆菌 (Lactobacillus gasseri) TF08-1的益生菌特征:一种降胆固醇的细菌,从人类肠道中分离出来
Mengmeng Wang1, Tongyuan Hu2, Xiaoqian Lin3
1BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
Enzyme and microbial technology
|June 15, 2023
概括
一种新型益生菌Lactobacillus gasseri TF08-1有效降低胆固醇,效率为84.40%. 这种安全的细菌还表现出对外聚糖的产生和对酸和胆盐的耐受性,表明对代谢性疾病治疗的潜力.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 益生菌 益生菌 益生菌
背景情况:
- 乳酸菌种对人类健康至关重要,并被用作益生菌.
- 识别具有特定健康益处的新型菌株,如降低胆固醇,是很重要的.
研究的目的:
- 为了评估从一个健康的青少年中分离出来的Lactobacillus gasseri TF08-1的益生菌潜力.
- 通过基因组和体外分析来评估其降胆固醇能力和安全性.
主要方法:
- 对于Lactobacillus gasseri TF08-1.的基因组测序和注释.
- 在体外测试益生菌特性,包括碳源利用,安全性 (抗生素耐药性,毒性因素),胆盐酸酶活性和胆固醇去除.
- 对外聚糖的产生和对酸和胆盐的耐受性进行评估.
主要成果:
- 乳杆菌加塞里TF08-1基因组 (1.97 Mbp) 含有1,940个编码序列,具有多种功能基因.
- 该菌株在有限的抗生素耐药性和毒性因素下显示出安全性.
- 观察到高胆汁盐化酶活性和84.40%的显著胆固醇去除效率.
- 这种细菌表现出强大的外聚糖类生产和对酸性和胆盐条件的耐受性.
结论:
- 乳杆菌毒素TF08-1是一种安全且有前途的益生菌候选者.
- 它的降胆固醇能力和其他有益的特性表明其在代谢疾病的生物治疗中具有潜在的应用.
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