TABLE 2.
Comparison of fermentation performance of different E. coli engineered strains
| Method and strain | Time (h) | l-Threonine (g/L) | Productivity (g/L/h) | Reference |
|---|---|---|---|---|
| Free-cell fermentation | ||||
| W1688 | 36 | 10.3 | 0.2861 | This study |
| ΔycgF mutant | 36 | 10.12 | 0.2811 | This study |
| Batch/shake flask culture | ||||
| ΔycgF mutant | 33 | 11.54 | 0.35 | This study |
| ΔycgF nMagHigh and ΔycgF pMagHigh mutants cocultured | 27 | 16.57 | 0.614 | This study |
| TWF006/pFW01 | 36 | 15.9 | 0.44 | 50 |
| βIM4 | 72 | 13.4 | 0.186 | 51 |
| Fed-batch culture | ||||
| TH28C | 50 | 82.4 | 1.648 | 52 |
| EC125 | 48 | 105.3 | 2.194 | 53 |
| THPE5 | 40 | 70.8 | 1.77 | 54 |
| TWF083 | 48 | 116.62 | 2.43 | 55 |