Table 2.
Ethanol yields from furfural tolerant Saccharomyces strains
| Furfural concentration (mg ml −1 ) | NCYC 3451% ethanol yield | NCYC 3284% ethanol yield | NCYC 3290% ethanol yield | NCYC 3312% ethanol yield | NCYC 3277% ethanol yield | NCYC 2826% ethanol yield |
|---|---|---|---|---|---|---|
| 0.1 | 64 ± 5 | 86 ± 13 | 26 ± 8 | 41 ± 8 | 77 ± 19 | 59 ± 6 |
| 0.5 | 78 ± 8 | 89 ± 14 | 28 ± 5 | 75 ± 5 | 68 ± 7 | 38 ± 7 |
| 1.0 | 74 ± 7 | 82 ± 15 | 17 ± 3 | 54 ± 26 | 45 ± 10 | 62 ± 15 |
| 1.5 | 75 ± 14 | 37 ± 18 | 21 ± 1 | 35 ± 12 | 64 ± 10 | 47 ± 10 |
| 2.0 | 81 ± 15 | 61 ± 20 | 31 ± 2 | 62 ± 24 | 61 ± 17 | - |
| 2.5 | 78 ± 10 | 60 ± 19 | 30 ± 3 | - | - | - |
| 3.0 | 95 ± 15 | - | - | - | - | - |
| 3.5 | - | - | - | - | - | - |
S. cerevisiae strains NCYC 2826, 3451, 3284, 3290, 3312 and S. paradoxus strain 3277 were grown in triplicate on YNB, 100 mM glucose in the presence of the shown amount of furfural for 35 h, and ethanol yields were measured on each culture after 48 h. Ethanol was not measured on cultures that showed no signs of growth (indicated by a dashed line). NCYC, National Collection of Yeast Cultures.