Strain | Ability to survive in low pH values | ||||
---|---|---|---|---|---|
pH 6.5 (control) | pH 3.0 | pH 2.0 | |||
log (CFU/ml)a | log (CFU/ml)a | viability [%] | log (CFU/ml)a | viability [%] | |
25 K/L/1 | 8.71 ± 0.03b | 7.44 ± 0.57a | 85.4 | 4.44 ± 0.33c | 50.1 |
42 K/L/2 | 9.02 ± 0.03a | 7.23 ± 0.16a | 80.1 | 7.17 ± 0.18a | 79.5 |
50 K/L/1 | 8.29 ± 0.06c | 7.45 ± 0.16a | 89.9 | 5.73 ± 0.17b | 69.1 |
55 K/L/1 | 8.62 ± 0.05b | 7.19 ± 0.16a | 83.4 | 2.47 ± 0.21d | 28.6 |