Table 1.
Comparison of the performances of the different conditions for l-Arg production by fermentation
| Conditions | GlcC (g/L) | DCW (g/L) | Arginine (g/L) | Yield | VP (g/L/h) | |
|---|---|---|---|---|---|---|
| YA/G (g arg/g glc) | YA/D (g arg/g DCW) | |||||
| CCM01 | 70.32 ± 3.35 | 9.92 ± 0.35 | 15.22 ± 0.27 | 0.22 ± 0.01 | 1.54 ± 0.01 | 0.13 ± 0.03 |
| CCM01 + Tween 40 | 60.33 ± 2.47 | 7.91 ± 0.42 | 17.73 ± 0.18 | 0.30 ± 0.02 | 2.24 ± 0.03 | 0.15 ± 0.04 |
| CCM02 | 60.96 ± 1.05 | 8.34 ± 1.07 | 17.58 ± 0.34 | 0.29 ± 0.04 | 2.11 ± 0.02 | 0.15 ± 0.04 |
| CCM02 + Tween 40 | 59.37 ± 2.91 | 7.36 ± 0.27 | 19.56 ± 0.19 | 0.33 ± 0.03 | 2.68 ± 0.02 | 0.16 ± 0.02 |
| CCM03 | 80.98 ± 1.05 | 8.17 ± 1.07 | 27.45 ± 0.58 | 0.34 ± 0.05 | 3.38 ± 0.13 | 0.23 ± 0.02 |
| CCM03 + Tween 40 | 89.34 ± 3.91 | 7.36 ± 0.27 | 29.97 ± 1.13 | 0.34 ± 0.09 | 4.10 ± 0.15 | 0.25 ± 0.05 |
Fermentations were performed in a 250 mL flask at 30 °C; the initial glucose concentration was 120 g/L.
Results are the means ± standard deviations in three independent experiments.
GlcC glucose consumed, Y A/G arginine yield vs. glucose, Y A/D arginine yield vs. DCW, V P volumetric productivity.