Safety And Protective Effect Of Bifidobactérium Spp. Usedas Probiotic Agent In Vivo Against Enteropathogenic Escherichia Coli
Résumé: This study showed the effect of fermented milk milk with Bifidobacterium bifidum on the contaminations by Escherichia coli enteropathogenic EPEC and intestinal disorders. The B. bifidum strain (Bf) was isolated on MRS medium contened 0.5g/L of cysteine hydrochloride and 2 mg/L of nalidixic acid. This strain was isolated from (breastfed infant faeces). This strain is considered as a model strain, for antagonism in vivo developed in the rat (wistar). In this study has been demonstrated that the administration of Bifidobacterium strain cause a significant reduction in the rate of E. coli enteropathogenic in the feces of rats. Results of the macroscopic study of histological sections have confirmed the positive effect of treatment with bifidobacteria. In this study by using in vitro and in vivo conditions the effect of probiotics addition (such as Bifidobacterium) in order to reduce the enteropathogenic bacteria in the digestive tract was confirmed.
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