Table 1.
Comparison of culture growth parameters from closed batch experiments.*
| Closed batch | Agitation | OD578 | μL [h−1] | GTL [h] | ||
|---|---|---|---|---|---|---|
| Method | [rpm] | Max | time [h] | |||
| SB | Shaker | 100 | 0.9292 | 301 | 0.07 | 26.93 |
| Shaker.2 | 100 | 1.1929 | 325 | 0.25 | 7.87 | |
| Stirrer | 100 | 1.1089 | 325 | 0.29 | 6.8 | |
| Stirrer | 500 | 1.2339 | 323 | 0.95 | 2.11 | |
| Stirrer/2× | 500 | 1.2924 | 179 | 0.94 | 2.12 | |
| SCB | Shaker | 100 | 1.0819 | 325 | 0.21 | 9.65 |
| Shaker | 180 | 1.0530 | 209 | 0.65 | 3.06 | |
| Shaker/2× | 100 | 1.0561 | 291 | 0.48 | 4.19 | |
| Stirrer | 100 | 0.4766 | 326 | 0.12 | 16.63 | |
| Stirrer | 500 | 0.9322 | 321 | 0.27 | 7.37 | |
| Stirrer | 800 | 0.9318 | 158 | 0.24 | 8.48 | |
| Stirrer | 1,100 | 0.6804 | 209 | 0.15 | 13.74 | |
| Stirrer | 1,400 | 0.1691 | 96 | – | – | |
Closed batch SB und SCB experimental groups are listed with their respective agitation method and intensity (rpm). Maximum (max) measured OD578 and the respective needed time are compared. Highest recorded μL and GTL were calculated according to Formulas 1 and 3. shaker.2, an experimental group, subjected to the same cultivation conditions after inoculation transfer to a new culture; /2×, double H2/CO2 feeding timepoints.