Antimicrobial Activity of Probiotics on Swiss Mice

Abstract

Salmonella enterica serovar typhimurium is the first cause identified of food poisoning in humans; new data indicate that the resistant strains of Salmonella sp. can be inhibited by a bacterial population present in foods have been called probiotics. Our study was conducted on Swiss albino mice in order to know the effect of probiotics or biotherapeutic agents, and suggest the different therapeutic possibilities of intestinal complications related to the presence of Salmonella enterica serovar typhimurium; Reference strains, Lactobacillus delbrueckii subsp. bulgaricus, Lactobacillus acidophilus and Lactobacillus paracasei in combination with Bifidobacterium sp. were tested for their health benefits. The number of Salmonella enterica serovar typhimurium decreases in intestine, in the stomach and in the liver for group 2, 3 in case of preventive treatment and group 4, 5 in case of a therapeutic treatment due to the use of a culture of probiotics, in comparison with group 1 where we recorded a high number. The bio-therapeutic treatment was finally confirmed by macroscopic and microscopic observations of different target organs before and after treatment for the experiment period.