engleski

Antibacterial activity and plasmid detection in different strains of lactic acid bacteria

Six strains of lactic acid bacteria isolated from silage, fermented milk and vegetables, were examined fro antagonistic activity against a set of test microorganisms. The two screening methods used were the agar spot test and the disc assay method. All tested culture supernatant fluids inhibits the growth of Staphylococcus aureus 3048, Staphylococcus aureus K-144, Escherichia coli, Salmonella mumum, Bacillus cereus and Bacillus subtilis . However, concentrated and neutralized supernatants from four of six strains (Lactobacillus acidophilus, Lactobacillus plantarum L4, Lactobacillus plantarum Z88 and Enterococcus faecium)

lactic acid bacteria; probiotics

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