TABLE 1.
Source or characteristic | Values
|
|||||||
---|---|---|---|---|---|---|---|---|
1 (22)a | 2 (9) | 3 (16) | 4 (23) | 5 (9) | 6 (7) | 7 (4) | 8 (2) | |
Source of isolation | ||||||||
Product | B | A | A | A | A | A | Ab | A |
Day | 25 | 1, 3, 25 | 3, 25 | 0, 1, 25 | 0, 1 | 1, 3 | 0 | 0 |
Trial | I, II | I, II | I | II | II | I | I, II | I |
Phenotypic characteristics | ||||||||
Rods | 22 | 9 | 16 | 23 | 8 | 0 | 0 | 0 |
NH3 from arginine | 0 | 4 | 0 | 23 | 0 | 7 | 2 | 0 |
Gas from glucose | 0 | 0 | 0 | 23 | 9 | 0 | 0 | 0 |
Gas from gluconic acid | 0c | 0 | 16 | 21 | 9 | 0 | 0 | 0 |
pH < 4.15 in La broth | 22 | 9 | 16 | 0 | 0 | 7 | 2 | 0 |
Growth with vancomycind | 22 | 9 | 16 | 23 | 9 | 7 | 0 | 2 |
Sensitivity to nisin | 1 | 9 | 14 | 23 | 9 | 6 | 3 | 2 |
Group (number of isolates examined).
One isolate from product B.
No growth.
At a concentration of 30 μg g−1.