Table 5.
Extracellular protease activity in different expression medium.
| Medium | Activity after 24 h (U ml−1) | Cell density (24 h OD600) | Activity after 48 h (U ml−1) | Cell density (48 h OD600) |
|---|---|---|---|---|
| LB | 726.6 ± 10.1 | 3.8 ± 0.1 | 870.7 ± 11.4 | 4.5 ± 0.1 |
| LBG | 1530.2 ± 16.5 | 7.1 ± 0.2 | 2187.2 ± 26.3 | 9.1 ± 0.3 |
| 2 × LB | 1358.0 ± 14.8 | 4.8 ± 0.1 | 1626.7 ± 16.2 | 7.3 ± 0.2 |
| 2 × LBG | 1720.7 ± 20.5 | 7.2 ± 0.2 | 1943.7 ± 21.9 | 11.1 ± 0.4 |
| SR | 1738.7 ± 18.7 | 5.2 ± 0.2 | 1879.5 ± 18.5 | 8.5 ± 0.2 |
| SRG | 1952.4 ± 22.8 | 8.7 ± 0.3 | 3124.8 ± 28.3 | 11.5 ± 0.4 |
| SRG-30 °C | 2131.5 ± 25.1 | 7.0 ± 0.2 | 4935.5 ± 32.7 | 10.8 ± 0.3 |