TABLE 4.
Survival of L. paracasei in the presence or absence of particulate matter at two different doses of UHP
| Time (h) |
L. paracasei survival (CFU/ml)a in:
|
|||
|---|---|---|---|---|
| MRS broth at:
|
MRS broth plus 10% (wt/vol) wheat mash particles at:
|
|||
| 2 mmol/liter | 42.6 mmol/liter | 2 mmol/liter | 42.6 mmol/liter | |
| 0 | 1.07 × 107 | 1.02 × 107 | 1.06 × 107 | 1.08 × 107 |
| 2 | 2.92 × 106 | <102 | 1.83 × 106 | 3.21 × 104 |
| 4 | <102 | – | 2.47 × 106 | 4.17 × 102 |
| 6 | – | – | 2.82 × 106 | 5.67 × 102 |
| 12 | – | – | 9.15 × 107 | 7.83 × 102 |
| 24 | – | – | 8.57 × 108 | 1.27 × 103 |
a
Values are the means of duplicate samples. A value of <102 indicates that no colonies were seen on the plates. –, the Klett value remained at 0, indicating no regrowth of the bacteria (since media was clear, growth was measured by determining the optical density when MRS broth was used).