Table 2 Effect of the hydrolysate on the growth and lactic acid production of B. coagulans MA-13
Batch name | μ max (h−1) | Relative μ max (%) | Final LA concentration (g/l) | LA maximum volumetric productivity (g/l/h) | LA maximum specific productivity (g/l/h/OD) | LA average volumetric productivity (g/l/h) | LA average specific productivity (g/l/h/OD) | LA yield (g/g) | Fermentation time (h) |
|---|---|---|---|---|---|---|---|---|---|
Hydrolysate-free | 0.44 | 100 | 29.70 | 2.55 | 0.50 | 1.40 | 0.28 | 0.92 | 18 |
30% hydrolysate | 0.37 | 84 | 32.05 | 2.70 | 0.42 | 1.25 | 0.23 | 0.95 | 22 |
50% hydrolysate | 0.35 | 78 | 32.30 | 2.40 | 0.54 | 1.38 | 0.30 | 0.91 | 22 |
70% hydrolysate | 0.30 | 67 | 31.77 | 1.81 | 0.63 | 1.24 | 0.30 | 0.91 | 24 |
95% hydrolysate | 0.26 | 58 | 33.71 | 1.18 | 0.99 | 0.59 | 0.38 | 0.92 | 48 |