Table 2.
Growth medium | Inoculum ratio (L. monocytogenes: L. innocua)a | Listeria species | λ (h)b | μmax (h−1)b | Stationary phase cell density (log10 CFU/ml)b |
---|---|---|---|---|---|
UVM | High:High | monocytogenes | 1.95 ± 0.17A | 5.65 ± 0.04A | 6.47 ± 0.02A |
Innocua | 2.56 ± 0.43A | 5.82 ± 0.06A | 6.41 ± 0.02A | ||
UVM | Low:Low | monocytogenes | 12.74 ± 0.45B | 5.68 ± 0.11A | 6.38 ± 0.05AB |
innocua | 13.20 ± 0.45B | 5.79 ± 0.07A | 6.64 ± 0.07B | ||
TSB | Low:Low | monocytogenes | 9.27 ± 0.45C | 6.64 ± 0.11B | 7.17 ± 0.06C |
innocua | 9.24 ± 0.76C | 6.44 ± 0.12B | 6.89 ± 0.09B |
aHigh = 105 CFU/ml; Low = 102 CFU/ml.
bSuperscript letters “A–C” indicate significant differences (p < 0.05) in a single column.