Table 1. Cell viability of probiotic strains after 3 h of exposure to low pH conditions and simulated gastric juice.
Strain | Initial count | low pH conditions | Resistance to gastric juice with 0.3% (w/v) pepsin | ||
---|---|---|---|---|---|
pH 2 | pH 3 | pH 2 | pH 3 | ||
Bb12 | 6.71 ± 0.02φ,a | -γ | 6.61 ± 0.05a | 6.21 ± 0.04b | 6.65 ± 0.01a |
BF014 | 7.14 ± 0.11a | - | 6.86 ± 0.25ab | 6.46 ± 0.05b | 7.08 ± 0.12a |
BF049 | 7.13 ± 0.03a | - | 6.93 ± 0.02b | - | 1.61 ± 0.02c |
BF052 | 7.31 ± 0.06a | - | 7.25 ± 0.07a | 6.99 ± 0.02b | 7.26 ± 0.05a |
BH053 | 7.79 ± 0.06a | - | 7.34 ± 0.18b | 7.19 ± 0.03b | 7.65 ± 0.03a |
φ Each value represents the mean value (log CFU/mL) ± stand deviation (SD) from three trials. The equal superscript lowercase letters in the same row indicate no significant differences (p>0.05)
γ No growth.