Table 4 Comparison of fed-batch and chemostat cultivations. µ/D: values in percent relative to the maximum specific growth rate µ [h^-1]. For control run A and B a range is given due to a constant feeding profile. q_s [g*g^-1*h^-1]: Values in percent relative to the maximum specific substrate uptake rate. For control run A and B at the beginning of the constant feeding profile is given. Specific productivity (q_p) [g*g^-1*h^-1]: Values are normalized to the achieved specific product formation rate in control run A at the end of the fermentation. The depicted values are the average for the whole process as soon as constant process conditions had been achieved. Space-time yield (STY) [g*L^-1*h^-1]: Values are the overall STY for the total process duration for fed-batch and the average in the constant phase for chemostats. All values are normalized to the achieved STY in control run A

From: Transferability of bioprocessing modes for recombinant protease production: from fed-batch to continuous cultivation with Bacillus licheniformis