Figure 3.

Inactivation of S. Typhimurium by four S. Typhimurium phages (phST1, phST2, phST3 and phSE-5) at an MOI of 10 for 24 h. Bacterial concentration of S. Typhimurium through colony-counting (A), optical density (B) and cell viability (C) methods: BC-Bacteria Control; BP-Bacteria plus Phage. Values represent the mean of three independent assays; error bars represent the standard deviation. * p < 0.05 (relative to the respective control). Some values are missing because they go below the method’s lower detection limit and would go to a negative Y value, and negative numbers cannot be shown on a logarithmic axis.