Bui Thi Lan Anh, Nguyen Thi Ngoc Suong, Le Thi Lan Anh, Dao Nguyen Manh, Hoang Duc Hau, Vo Viet Cuong, Nguyen Dac Hieu, Do Danh Thang
Objectives: Evaluation of the ability to inhibit bacteria that cause foodborne illness of two probiotic strains E. faecium F26BA and E. faecium F54BA (components in the probiotic product EntVN 500 mg).
Subjects and methods: The study used two probiotic strains, E. faecium F26BA and E. faecium F54BA, which are components of the probiotic product EntVN 500 mg, foodborne pathogenic bacteria isolated in Vietnam include 10 strains of Shiga toxin-producing E. coli, 20 strains of Salmonella spp., 10 strains of Shigella spp., and 2 toxin-producing strains of Staphylococcus aureus. The agar well diffusion method, according to Ridwan, was used to assess the inhibitory activity of the two probiotic strains.
Results: Both probiotic strains F26BA and F54BA showed strong antibacterial activity against groups of foodborne pathogenic bacteria.The inhibition zone diameters of F26BA and F54BA against 10 strains of Shiga toxin-producing E. coli, 20 strains of Salmonella spp., 10 strains of Shigella spp., and 2 toxin-producing strains of Staphylococcus aureus in all three agar well diffusion experiments were greater than 10 mm.
