隔离和评估来自狗奶的乳酸细菌菌株的多功能性质
Yunjiang Liu1, Yueyan Zeng1, Li Chen2
1Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
Frontiers in veterinary science
|December 13, 2024
概括
狗奶中的六种乳酸细菌 (LAB) 菌株显示出有前途的益生菌潜力. 菌株L221在狗肠道健康方面表现出优越的多功能特性.
科学领域:
- 微生物学 微生物学
- 动物科学动物科学
背景情况:
- 乳酸细菌 (LAB) 是发酵的关键,一些菌株通过肠道微生物群调节,免疫支持和抗炎作用提供健康益处.
- 来自犬类来源的益生菌对于增强物健康有价值.
研究的目的:
- 从狗奶中分离并全面评估LAB菌株的益生菌特性.
- 为了确定狗的潜在益生菌候选人.
主要方法:
- 从狗奶样本中分离了6个LAB菌株.
- 评估生长,抗压能力,抗病原体活性,附着性,安全性,抗氧化能力和益生菌代谢物生产.
- 与*Lactobacillus rhamnosus* LGG作为对照的比较.
主要成果:
- 与对照组相比,所有6个LAB分离物都表现出有利的益生菌特性.
- 这些菌株对过氧化 (H2O2) 具有很高的耐受性,并且具有显著的自由基清除活性 (DPPH,OH−).
- 观察到益生菌代谢物的产量增加,包括外聚糖 (EPS),γ-氨基黄油酸 (GABA) 和胆盐酸酶 (BSH).
结论:
- 该研究成功地从狗奶中鉴定出具有显著益生菌潜力的多功能LAB分离物.
- 菌株L221成为了表现最好的菌株,表明它作为狗的益生菌具有前途.
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