Respiratory Physiology of Lactococcus lactis in Chemostat Cultures and Its Effect on Cellular Robustness in Frozen and Freeze-Dried Starter Cultures.

The relationships between the specific lactose consumption rate and the dilution rate were linear and clearly significant under both anaerobic and respiration-permissive conditions (observed F -test statistic F obs, AN = 656 > F 0.001,1,10 = 21 and F obs, RES = 1,072 > F 0.001,1,9 = 23, respectively), indicating that the maintenance coefficient was independent of the specific growth rate in both cases ( Fig. 4A ).

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