Table 1.
Probiotic Lactobacillus strains survivability in an acidic environment
| Lactobacillus strain | pH | |||||||
|---|---|---|---|---|---|---|---|---|
| 2 | 3 | |||||||
| Time [h]] ± SD * | ||||||||
| 0 | 1 | 2 | 4 | 0 | 1 | 2 | 4 | |
| Cell survival rate [%] | ||||||||
| paracasei ŁOCK 1091 | 100 d | 94.39 ± 1.26 a, b, c, d | 93.82 ± 1.76 a, b, c, d | 91.39 ± 3.16 a, b, c, d | 100 d | 95.72 ± 1.26 a, b, c, d | 94.92 ± 1.21 a, b, c, d | 93.44 ± 0.45 a, b, c, d |
| pentosus ŁOCK 1094 | 94.91 ± 2.41 a, b, c, d | 92.92 ± 3.58 a, b, c, d | 91.17 ± 3.98 a, b, c | 96.79 ± 2.51 a, b, c, d | 95.28 ± 1.14 a, b, c, d | 94.19 ± 1.83 a, b, c, d | ||
| plantarum ŁOCK 0860 | 97.25 ± 2.75 b, c, d | 92.88 ± 1.96 a, b, c, d | 91.08 ± 0.73 a, b, c | 98.32 ± 2.50 b, c, d | 95.97 ± 1.66 a, b, c, d | 94.14 ± 3.01 a, b, c, d | ||
| reuteri ŁOCK 1092 | 92.74 ± 3.26 a, b, c, d | 90.15 ± 1.62 a, b | 88.12 ± 2.37 a | 94.68 ± 2.35 a, b, c, d | 91.65 ± 0.69 a, b, c, d | 89.70 ± 1.31 a, b | ||
| rhamnosus ŁOCK 1087 | 96.18 ± 1.42 a, b, c, d | 95.02 ± 2.41 a, b, c, d | 90.96 ± 1.19 a, b, c | 98.98 ± 2.83 c, d | 97.07 ± 2.32 b, c, d | 95.76 ± 1.77 a, b, c, d | ||
*Mean values labelled by various lowercase letters (a, b, c, d) were significantly different (multi-way ANOVA with post hoc Tukey’s test; p < 0.05). Multi-way ANOVA included the influence of used strains, pH levels and time of incubation, as well as interactions of these explanatory variables on the survival of analysed probiotics in the acidic environment