Table 4.
Survival of selected isolates after an incubation at various pH and % bile for 3 h.
| Isolate no. | Number of bacteria (logCFU mL–1) | % Reductionb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MRSa | pH 2 | pH 3 | 0.3% Bile | 0.8% Bile | pH 2 | pH 3 | 0.3% Bile | 0.8% Bile | ||
| PD3-2 | 8.18±0.09 | 5.52±0.07* | 6.15±0.07* | 9.22±0.04* | 9.11±0.03* | 32.52 | 24.82 | +12.71 | +11.37 | |
| PD3-1 | 8.18±0.15 | 5.80±0.18* | 6.02±0.21* | 8.77±0.07* | 8.52±0.07* | 29.10 | 26.41 | +7.21 | +4.16 | |
| PD9-2 | 9.17±0.08 | 5.65±0.16* | 6.95±0.31* | 7.62±0.15* | 7.52±0.07* | 38.39 | 24.20 | 16.90 | 17.99 | |
Data are expressed as the mean±SD.
*P<0.05, significantly different from the negative control.
a MRS was used as a negative control.
b Percent reduction in the bacterial number relative to the negative control; +, indicates enhanced bacterial viability.