Table 1 Mass-balance analyses of Avicel and switchgrass fermentations
Condition | Initial substrate/ biomass (mg) | Residual substrate/biomass + cell dry weight (mg) | Soluble glucose and xylose equivalents recovered (mg) | Fermentation products recovered (mg)a | Carbon recovery (%) | Final pH |
|---|---|---|---|---|---|---|
3.5 g/L Avicel | 175.0 | 13.8 ± 1.1 | 5.0 ± 0.1 | 90.4 ± 2.9 | 62.4 ± 2.8 | 7.0 ± 0.0 |
8.8 g/L Avicel | 440.0 | 30.7 ± 0.6 | 4.1 ± 0.3 | 225.1 ± 10.6 | 59.1 ± 2.8 | 6.8 ± 0.0 |
17.5 g/L Avicel | 875.0 | 44.9 ± 1.3 | 1.5 ± 0.1 | 548.0 ± 6.1 | 67.9 ± 2.4 | 6.0 ± 0.0 |
10 g/L SG | 500.0 | 297.9 ± 12.0 | 124.1 ± 16.2 | 71.0 ± 7.3 | 98.6 ± 8.9 | 7.1 ± 0.0 |
25 g/L SG | 1250.0 | 811.1 ± 7.7 | 179.2 ± 14.0 | 150.8 ± 2.2 | 91.3 ± 3.1 | 6.8 ± 0.0 |
50 g/L SG | 2500.0 | 1768.8 ± 10.7 | 285.6 ± 11.3 | 223.3 ± 11.6 | 91.1 ± 2.9 | 6.6 ± 0.0 |