Table 2.
Survival of lactobacilli during simulated gastrointestinal tract transit.
| Log reduction (CFU ml-1) after 3 h in simulated gastric juice |
Log reduction (CFU ml-1) after 3 h in simulated ileal juice∗ |
||||
|---|---|---|---|---|---|
| Suspension medium | pH | L. gasseri APC 678 | L. rhamnosus DPC 6111 | L. gasseri APC 678 | L. rhamnosus DPC 6111 |
| PBS | 7.0 | 0.16 | 0.21 | 0.52 | 0.43 |
| 3.0 | 1.96 | 1.01 | 2.19 | 1.78 | |
| 2.0 | 1.52 | 3.53 | 8.00 | 8.00 | |
| RSM | 7.0 | 0.84 | 0.49 | 0.52 | 0.13 |
| 3.0 | 1.92 | 0.91 | 1.89 | 2.47 | |
| 2.0 | 1.91 | 1.49 | 2.82 | 4.39 | |
The effect of initial suspension medium (PBS or RSM) on the subsequent survival of L. gasseri APC 678 and L. rhamnosus DPC 6111 in simulated gastric juice, followed by simulated ileal juice. ∗Cells were transferred to simulated ileal juice following 3 h incubation in gastric juice and incubated for an additional 3 h.