Table 3 Parameters and level of the experiment design
Parameters | Levels | ||
|---|---|---|---|
−1 | 0 | +1 | |
Temperature, °C | 25 | 30 | 35 |
pH | 5.5 | 6.0 | 6.5 |
Inoculum size, % (v/v) | 10 | 15 | 20 |
Molasses concentration (w/v) | 25 | 30 | 35 |
Mixing rate, rpm | 110 | 130 | 150 |
Incubation period, h | 48 | 60 | 72 |