Table 2 Acidification and metabolites produced by L. lactis IPLA947 and the Lcn972 resistant mutant L. lactis R5 grown in milk
L. lactis strain | Acidification parametersa | Residual lactose (mM) | Organic acids (mM) | ||||
|---|---|---|---|---|---|---|---|
Vm (mpHUnits/min) | Tm (min) | Te (min) | Lactic | Acetic | Formic | ||
947 (WT) | 3.27 ± 0.04 | 150 | 960 ± 0 | 103.8 ± 6.5 | 61.8 ± 4.2 | 0.68 ± 0.07 | 0.27 ± 0.02 |
R5 | 3.32 ± 0.11 | 150 | 1005 ± 21 | 91.5 ± 4.9 | 52.4 ± 2.5 | 1.01 ± 0.02 | 0.24 ± 0.00 |