强壮的山羊衍生型肠球菌与广泛的抗病原性活性分离为下一代益生菌候选人
Mohamed Osman Abdalrahem Essa1,2, Nosiba S Basher3, Layla Ahmed Mohammed Abdelhadi1
1College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China.
Veterinary sciences
|February 26, 2026
概括
在山羊中分离的五种Enterococcus菌株显示出有前途的益生菌潜力,在模拟的肠道条件下表现出高生存率和有效的病原体驱逐. 这些新型菌株为牲畜和潜在的人类提供了安全的抗生素替代品.
科学领域:
- 微生物学 微生物学
- 动物科学动物科学
- 食品科学 食品科学 食品科学
背景情况:
- 抗生素耐药性增加需要替代治疗方法.
- 益生菌为肠道病原体控制提供安全有效的解决方案.
- 菌种类以其益生菌性质而闻名.
研究的目的:
- 从山羊便中分离和表征Enterococcus菌株,以检测它们的益生菌潜力.
- 评估所选菌株的生存能力,殖民能力和抗病原活性.
- 评估这些潜在的益生菌候选者的安全性.
主要方法:
- 从山羊便中分离和选乳酸细菌.
- 隔离物对催化酶,运动性,血液溶解和耐压力 (胃,肠道,盐,胆汁) 的表征.
- 评估细胞表面的疏水性,自我聚合,与病原体的共同聚合,以及无细胞超水生物的抗菌活性.
主要成果:
- 五种Enterococcus菌株对胃和肠道疾病,盐和胆汁有很好的耐受性.
- 这些菌株表现出与大肠杆菌和S. typhimurium强烈的自聚和协聚.
- 没有细胞的超级生物显示出对大肠杆菌,S. flexneri和MRSA的显著抑制区域.
- 抗生素敏感性测试显示对西普罗夫洛克萨和佛罗芬尼科尔的敏感性,没有检测到β-血解或移动耐药基因.
结论:
- 来自山羊的Enterococcus分离物具有强大的胃肠道存活能力和广泛的抗病原性活性.
- 这些菌株是开发下一代动物和人类应用益生菌的有希望的候选人.
- 建议进行进一步的体内研究和基因组安全性评估.
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