Table 2. Effect of pH and bile salt on the survival of selected strains

Selected strains pH tolerance1 Bile salts tolerance2
pH 7 pH 2 0% 0.3% 0.5% 1.0%
MG723 7.52±0.03 2.04±0.14 9.30±0.05 7.00±0.04 6.26±0.05 3.00±0.03
MG729 7.39±0.08 2.10±0.12 9.34±0.08 8.72±0.05 4.00±0.11 1.89±0.02
MG731 7.38±0.05 2.00±0.06 9.24±0.02 7.01±0.08 4.01±0.07 2.08±0.05
MG741 7.33±0.04 4.01±0.02 9.14±0.04 7.96±0.02 7.77±0.06 6.67±0.15
The pH tolerance results are shown the viable counts (log CFU/mL) of each isolate at pH 7 and pH 2 for 3 h.
Bile-salts tolerance results are shown as the viable counts (log CFU/mL) of each isolate at MRS media with 0% and 1% Oxgall at 37°C for 24 h.