Table 5.

Kinetic parameters for L-lactate production for batch cultures of B subtilis CH1 alsS^- grown in LB medium and mineral medium with 8 g/L of yeast extract (MM with YE) or mineral medium (MM), supplemented with 50 or 100 g/L of glucose (Glc).

Media	aYP/S (gP/gS)	bqP (gP/gDCW *h)	cqP (gP/gDCW *h)	dQP (gP/L*h)	eFinal L-lactate (g/L)
50 g/L Glc
LB	1.30	3.18	0.32	0.46	63.11
MM with YE	1.34	2.46	0.46	0.78	68.04
MM	0.96	1.28	0.36	0.17	37.40
100 g/L Glc
LB	1.27	4.11	0.27	0.37	64.51
MM with YE	1.09	2.68	0.30	0.54	105.59
MM	0.92	1.33	0.67	0.24	53.69

^aL-lactate yield from glucose at the end of fermentation.

^bSpecific rate of L-lactate production during the exponential growth.

^cSpecific rate of L-lactate production during the stationary phase.

^dVolumetric productivity of L-lactate.

^eL-lactate produced at the end of the stationary phase.