摘要
The aim of this study was to characterize human gut lactic acid bacteria group strains on the basis of their phenotypic profiles. In addition, their in vitro potential probiotic properties were evaluated with a view to identifying potential interesting application. Fifteen strains of lactic acid bacteria were isolated and identified. Among the strains, both biochemical and physiological characteristics differed noticeably and also showed a remarkable heterogeneity. The strains were grouped into the species Lactobacillus gasseri, Lb.casei ssp casei, Lb. delbrueckii ssp lactis, Lb. fermentum and Lb. delbrueckii ssp bulgaricus. These strains have an inhibitory activity against enterobacteria including Escherichia coli and Salmonella sp. A major part of these strains survived at pH 2.5 and in 0.3% bile salts. Additionally they produced no haemolysis, were resistant to kanamycin and adhered to epithelial cells. The results showed that the strains Lb. gasseri HG8 and Lb. fermentum HG3 have the best potential probiotic properties
摘要译文
这项研究的目的是根据其表型特征表征人肠乳酸菌菌株。此外，评估了它们的体外潜在益生菌特性，以确定潜在的有趣应用。分离并鉴定出15种乳酸菌菌株。在菌株中，生化和生理特征都明显不同，并且表现出显着的异质性。将菌株分为乳酸菌Gasseri，lb.casei ssp casei，lb。Delbrueckii SSP Lactis，LB。发酵剂和磅。Delbrueckii SSP保加利亚。这些菌株具有对肠杆菌的抑制活性，包括大肠杆菌和沙门氏菌。这些菌株的主要部分在pH 2.5和0.3％的胆汁盐中幸存下来。另外，它们没有产生溶血，对卡纳米霉素具有抗性并粘附在上皮细胞上。结果表明菌株LB。Gasseri HG8和LB。发酵液HG3具有最佳的潜在益生菌特性
Tayeb IDOUI ;. 8. Probiotic Potential of Lactic Acid Bacteria Isolated from Human Gut[J]. TOJSAT, 2012,2(3): 47-51