Table 4 Acidic pH tolerance of Lactobacillus acidophilus (S2)
pH | Time (hours) | Control | L. acidophilus (isolate S2) | Survival percentage (%) |
|---|---|---|---|---|
1 | 1 | 231 (10−4) | – | 0 ± 0 |
231 (10−4) | – | |||
2 | 1 | 201 (10−4) | 118 | 57.2 ± 3.5 |
201 (10−4) | 113 | |||
2 | 185 (10−5) | 89 | 46 ± 3.5 | |
185 (10−5) | 84 | |||
4 | 171 (10−6) | 70 | 38.5 ± 5.6 | |
171 (10−6) | 62 | |||
3 | 1 | 256 (10−4) | 186 | 71.8 ± 2.8 |
256 (10−4) | 182 | |||
2 | 153 (10−5) | 101 | 64.05 ± 3.5 | |
153 (10−5) | 96 | |||
4 | 198 (10−6) | 69 | 36.36 ± 4.2 | |
198 (10−6) | 75 |