Table 2.
Maximal population density and growth rate of L. piscium CNCM I-4031 (Lp) and L. monocytogenes RF191 (Lm) in pure (PC) or co-culture (CC) in MSMA medium at 26°C.
| Lactococcus piscium CNCM I-4031 | Listeria monocytogenes RF191 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Initial ratio UFC/ml (Lp/Lm) | (A) 103/103 | (B) 105/103 | (C) 106/106 | (A) 103/103 | (B) 105/103 | (C) 106/106 | ||||||
| Culture specifications | PC | CC | PC | CC | PC | CC | PC | CC | PC | CC | PC | CC |
| Maximal population density (log CFU/ml) ± SD | 8.28 ± 0.12 | 8.14 ± 0.2 | 8.01 ± 0.01 | 7.98 ± 0.27 | 8.35 ± 0.15 | 8.23 ± 0.09 | 9.19 ± 0.04 | 9.21 ± 0.09 | 9.36 ± 0.03 | 8.05 ± 0.07 | 9.33 ± 0.11 | 9.31 ± 0.05 |
| Growth rate (h-1) | 0.43 | 0.40 | 0.45 | 0.37 | 0.40 | 0.32 | 0.60 | 0.63 | 0.76 | 0.66 | 0.51 | 0.63 |
| Final population density (log CFU/ml) ± SD | 6.92 ± 0.02a | 6.75 ± 0.02a | 8.40 ± 0.29a | 8.23 ± 0.03a | 7.39 ± 0.04b | 7.91 ± 0.05a | 8.37 ± 0.11a | 7.46 ± 0.04b | 8.92 ± 0.09a | 5.55 ± 0.50b | 9.20 ± 0.10a | 5.99 ± 0.06b |
SD, standard deviation. a,bRepresent groups determined with LSD test, a same letter indicates values not significantly different (p-value < 0.05 by one-way ANOVA) through one condition.