Table 1.
Parameters in YP medium containing a single sugar under a static condition at 30°C and 45°C
| Medium | Temperature (°C) | Max. Yp/s (g/g) | Time of fermentation (h)a | μx/s (h-1) at 6 h | Max. μx/s (h-1) | γs (g/l h) at 6 h | Max. γs (g/l h) |
|---|---|---|---|---|---|---|---|
| YPSuc | 30 | 0.55 ± 0.04 | 24 | 0.77 ± 0.07 | 0.77 (6) ± 0.07 | 2.5 ± 0.02 | 2.5 (6) ± 0.02 |
| 45 | 0.44 ± 0.05 | 48 | 0.18 ± 0.10 | 0.18 (6) ± 0.10 | 3.4 ± 0.03 | 3.4 (6) ± 0.03 | |
| YPRaf | 30 | 0.14 ± 0.03 | 18 | 0.44 ± 0.04 | 0.44 (6) ± 0.04 | 2.9 ± 0.04 | 2.9 (6) ± 0.04 |
| 45 | 0.04 ± 0.05 | 24 | 0.05 ± 0.09 | 0.06 (24) ± 0.10 | 1.2 ± 0.01 | 1.2 (6) ± 0.01 | |
| YPInu | 30 | 0.52 ± 0.04 | 48 | 0.57 ± 0.11 | 0.57 (6) ± 0.11 | 0.66 ± 0.07 | 0.93 (12) ± 0.08 |
| 45 | 0.58 ± 0.01 | 18 | 0.14 ± 0.08 | 0.14 (6) ± 0.08 | 1.4 ± 0.10 | 1.4 (6) ± 0.10 | |
| YPGal | 30 | 0.45 ± 0.03 | 36 | 0.14 ± 0.06 | 0.85 (18) ± 0.12 | 0.0 ± 0.00 | 2.1 (18) ± 0.09 |
| 45 | - | - | - | - | - | - |
Values in parenthesis represent cultivation times
Max. Yp/s maximum ethanol yield, μx/s specific growth rate, Max. μx/s maximum growth rate, γs specific sugar utilization rate, Max. γs maximum sugar utilization rate, ± SD from three independent experiments
a Time required for the maximum ethanol concentration to be reached