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Bacterial counts on the beef surface
| Tested bacterial species | Bacterial count (CFU/g of meat) |
||
|---|---|---|---|
| PS1 (parent) | PS2 (flhC mutant) | Control | |
| Naturally occurring bacteria on beef | |||
| Total bacterial count | 1.25 × 1011 | 1.37 × 1011 | 8.7 × 1010 |
| Enterobacteriaceae | NDa | ND | 0 |
| Brocothrix | ND | ND | 1.25 × 1010 |
| Heterofermentative Lactobacillus | ND | ND | 5 × 1010 |
| Pseudomonas | ND | ND | 1.25 × 1010 |
| Inoculated bacteria | |||
| E. coli O157:H7 | 1.25 × 1010 | 5 × 1010 | 0 |
ND, not done.
