TABLE 3.
Viable counts of spoilage microbial groups from meat chops inoculated with S. proteamaculans 42M, P. fragi 25P, and C. maltaromaticum 9P and stored at 7°C for 30 days
| Medium | Time (days) | Mean viable counts (log CFU g−1) ± SDa
|
||||
|---|---|---|---|---|---|---|
| 42M | 25P | 9P | Mix | Control | ||
| VRBGA | 0 | 4.84 ± 0.02A | ND | ND | 4.41 ± 0.01A | 1.20 ± 0.17A |
| 5 | 5.00 ± 0.05A | ND | ND | 5.52 ± 0.02B | 2.11 ± 0.05B | |
| 15 | 5.50 ± 0.02B | ND | ND | 5.30 ± 0.15B | 5.05 ± 0.02C | |
| 30 | 6.95 ± 0.12C | ND | ND | 6.08 ± 0.13C | 5.10 ± 0.10C | |
| Pseudomonas agar | 0 | ND | 4.92 ± 0.11A | ND | 4.86 ± 0.04A | 2.18 ± 0.02A |
| 5 | ND | 5.70 ± 0.12B | ND | 6.23 ± 0.18B | 3.96 ± 0.01B | |
| 15 | ND | 5.75 ± 0.02B | ND | 5.95 ± 0.04B | 4.45 ± 0.03C | |
| 30 | ND | 6.05 ± 0.03B | ND | 6.24 ± 0.04B | 4.48 ± 0.04C | |
| CTSI | 0 | ND | ND | 5.41 ± 0.11A | 4.70 ± 0.02A | 2.05 ± 0.12A |
| 5 | ND | ND | 6.96 ± 0.10B | 4.63 ± 0.11A | 3.63 ± 0.04B | |
| 15 | ND | ND | 7.91 ± 0.06C | 4.05 ± 0.08B | 3.57 ± 0.03B | |
| 30 | ND | ND | 8.18 ± 0.06C | 3.78 ± 0.04B | 4.61 ± 0.05C | |
| PCA | 0 | 5.00 ± 0.10A | 4.43 ± 0.04A | 5.41 ± 0.09A | 5.04 ± 0.14A | 2.56 ± 0.05A |
| 5 | 5.25 ± 0.02A | 5.90 ± 0.03B | 6.96 ± 0.09B | 6.84 ± 0.13B | 5.40 ± 0.02B | |
| 15 | 6.96 ± 0.22B | 7.36 ± 0.08C | 7.91 ± 0.07C | 7.20 ± 0.08B | 5.63 ± 0.14B | |
| 30 | 8.12 ± 0.12C | 7.94 ± 0.09C | 8.18 ± 0.16C | 8.17 ± 0.07C | 5.10 ± 0.02B | |
a
For each culture medium, mean values with different superscripts in the same column are significantly different (P < 0.05). ND, not determined.