Table 3 The tolerant capacity of the strains to the simulated gastrointestinal environment
Strain | Control (108 CFU/mL) | Survival rate (%) | ||||
|---|---|---|---|---|---|---|
Artificial gastric juice | Bile salt | Artificial intestinal juice | ||||
pH 3.0 | pH 2.0 | 0.1% | 0.3% | |||
L. casei f1 | 4.25 ± 0.45 | 7.88 ± 1.29 | 0.37 ± 0.012 | 9.76 ± 0.12 | 0.068 ± 0.007 | 32.8 ± 3.41 |
L. paracasei f2 | 5.0 ± 0.2 | 10.7 ± 0.1 | 3.7 ± 0.1 | 4.42 ± 0.12 | 0.055 ± 0.013 | 7.2 ± 1.4 |
L. paracasei f3 | 6.05 ± 0.15 | 17.11 ± 0.41 | 0.034 ± 0.003 | 12.4 ± 1.82 | 0.058 ± 0.02 | 18.26 ± 0.91 |