TABLE 2.

Acid tolerance and survival rate of selected isolates under acidic conditions.

Strains	0 h CFU/ml	3 h CFU/ml	Survival rate (%)
SA 151	6.17 ± 0.1	6.01 ± 0.03	97.4%
SA 135	7.38 ± 0.01	7.33 ± 0.03	99.32%
ST 80	6.51 ± 0.01	6.46 ± 0.01	99.23%
SA 139	6.47 ± 0.1	6.17 ± 0.1	95.36%
SA 171	6.47 ± 0.1	5.60 ± 0.1	86.55%
SA 12	7.8 ± 0.06	7.3 ± 0.3	93.58%
SA 109	6.54 ± 0.06	5.17 ± 0.1	79.05%
SA 110	7.09 ± 0.08	5.87 ± 0.02	82.79%
SA 16	6.47 ± 0.03	5.54 ± 0.06	85.62%
ST 13	7.17 ± 0.1	6.17 ± 0.1	86.05%
ST 67	6.49 ± 0.01	6.30 ± 0.2	97.07%
ST 126	6.47 ± 0.1	5.30 ± 0.2	81.91%
ST 172	7.14 ± 0.03	5.65 ± 0.04	79.13%
ST 179	6.90 ± 0.05	5.47±+0.1	79.27%

Values are mean ± standard deviation of triplicates.