Table 2.
Comparison of ethanol productivity (g/L-h) of cold-tolerant S. cerevisiae Cheongdo under various conditions
| Carbon Source 1 | 10 °C 2 | 30 °C 3 | ||
|---|---|---|---|---|
| Cheongdo | EC1118 | Cheongdo | EC1118 | |
| d-Glucose 20 g/L | 0.10 ± 0.00 | 0.11 ± 0.00 | 0.66 ± 0.06 | 0.55 ± 0.02 |
| d-Glucose 200 g/L | 0.60 ± 0.00 * | 0.52 ± 0.00 | 3.33 ± 0.01 | 3.38 ± 0.03 |
| d-Galactose 20 g/L | 0.09 ± 0.01 | No growth | 0.59 ± 0.01 | No growth |
| d-Galactose 100 g/L | 0.29 ± 0.00 | No growth | 1.76 ± 0.17 | No growth |
* Significant difference between Cheongdo and EC1118 under the same conditions (p < 0.05). 1 Fermentation was performed at 130× rpm with an initial cell density of 0.1 OD600. 2 The average ethanol productivity at 10 °C was calculated at 72 h and 144 h for 20 g/L and 200 (100) g/L sugars, respectively. 3 The average ethanol productivity at 30 °C was calculated at 12 h and 24 h for 20 g/L and 200 (100) g/L sugars, respectively.