Table 2 Comparison of threonine production of the selected mutants with the parent strain
Strains | Threonine concentration (g/L) | Total threonine in a batch (g) | Yield (threonine/glucose, g/g) |
|---|---|---|---|
ThrH(pTZL2) | 117.60 ± 2.17 | 322.84 ± 5.61 | 0.39 ± 0.01 |
ThrH-27(pTZL2) | 123.61 ± 3.07 | 349.12 ± 1.87 | 0.46 ± 0.00 |
ThrH-5(pTZL2) | 127.92 ± 0.73 | 323.98 ± 7.83 | 0.42 ± 0.01 |
ThrH-33(pTZL2) | 113.45 ± 1.31 | 325.89 ± 3.68 | 0.42 ± 0.00 |