TABLE 1.

Product formation and specific growth rates for L. lactis strains growing on maltose^a

Strain	% of lactate in exponential phaseb	% of lactate at the end of fermentationc	μmax (h−1)d
L. lactis subsp. cremoris MG1363	14	51	0.65
L. lactis subsp. lactis 65.1	11	55	0.58
L. lactis subsp. lactis ATCC 19435	61	80	0.52
L. lactis subsp. lactis IL-1403	57	88	0.62

^aFor all strains lactate was the sole product detected in resting cell experiments.

^bThe percentage of lactate was calculated by using equation 1.

^cBased on the final product concentrations of cultures with an initial maltose concentration of 25 g/liter.

^dμ_max, maximum specific growth rate.