Table III.

Significant values (p < 0.05) for the constants in model [7] for the different dependent variables in the second fed-batch culture.

Parameter	Biomass	Viable cell counts	Nisin	Lactic acid	Acetic acid	Butane-2,3-diol
A1	0.46 ± 0.043	0.58 ± 0.053	0.42 ± 0.040	10.19 ± 0.405	0.41 ± 0.032	0.23 ± 0.062
A2	−3.32 ± 0.351	−1.75 ± 0.062	−27.69 ± 1.011	−8.10 ± 0.621	−2.19 ± 0.027	−3.15 ± 0.333
A3	0.58 ± 0.059	0.45 ± 0.011	6.53 ± 0.462	1.79 ± 0.109	0.44 ± 0.024	0.63 ± 0.097
A4	0.53 ± 0.038	0.26 ± 0.065	4.73 ± 0.516	−0.35 ± 0.017	0.42 ± 0.023	0.72 ± 0.065
A5	−0.04 ± 0.005	−0.01 ± 0.003	−0.10 ± 0.013	0.03 ± 0.006	−0.02 ± 0.001	−0.04 ± 0.004
A6	0.11 ± 0.006	NS	NS	NS	NS	NS
R2	0.9973	0.9906	0.9950	0.9959	0.9794	0.9856
RPDM (%)	0.987	0.326	3.775	2.609	3.988	3.602
VpHopt	1.82	1.96	2.12	2.26	2.47	2.49
pHopt = 7.0 – VpHopt	5.18	5.04	4.88	4.74	4.53	4.51
Gopt (g/l)	10.55	11.10	22.83	5.30	11.17	10.27