Table 3.
Glucose yields from pretreated samples following enzymic saccharification
| Miscanthus accession | Mild water | Severe water | Acid | Alkali | Accession mean | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre-enzyme | Post-enzyme | Pre-enzyme | Post-enzyme | Pre-enzyme | Post-enzyme | Post-enzyme | Post-enzyme | ||||||||
| High 1 | 21.1 ± 0.3 | c | 96.4 ± 3.4 | e | 18.5 ± 0.7 | e | 90.3 ± 2.2 | e | 23.4 ± 1.1 | e | 136.5 ± 3.4 | f | 144.6 ± 18.4 | ab | 75.8 |
| High 2 | 16.4 ± 4.6 | c | 78.3 ± 0.8 | d | 18.6 ± 0.3 | ab | 87.4 ± 4.6 | ab | 22.3 ± 0.4 | e | 127.1 ± 2.8 | f | 193.3 ± 0.0 | c | 77.6 |
| High 3 | 2.7 ± 0.1 | a | 53.1 ± 1.9 | b | 3.1 ± 0.3 | e | 53.6 ± 0.9 | e | 6.7 ± 0.9 | b | 112.1 ± 2.2 | e | 163.5 ± 0.2 | abc | 56.4 |
| Medium 1 | 3.7 ± 1.0 | ab | 55.0 ± 0.9 | b | 2.3 ± 0.1 | a | 63.6 ± 3.0 | bcd | 3.4 ± 0.3 | a | 85.5 ± 1.4 | cd | 169.3 ± 4.4 | bc | 54.7 |
| Medium 2 | 2.6 ± 0.5 | a | 61.6 ± 0.5 | c | 2.4 ± 0.1 | a | 74.2 ± 0.5 | d | 3.3 ± 0.5 | a | 94.1 ± 1.6 | d | 165.0 ± 5.7 | abc | 57.6 |
| Medium 3 | 9.6 ± 1.1 | b | 58.0 ± 2.6 | bc | 10.1 ± 1.1 | d | 66.1 ± 4.9 | cd | 11.8 ± 0.1 | d | 81.8 ± 1.5 | c | 155.8 ± 2.8 | ab | 56.2 |
| Low 1 | 3.6 ± 0.2 | ab | 43.0 ± 1.1 | a | 3.0 ± 0.2 | ab | 55.6 ± 0.5 | abc | 3.9 ± 0.5 | a | 68.8 ± 3.7 | b | 144.5 ± 5.1 | ab | 46.1 |
| Low 2 | 7.1 ± 0.8 | ab | 42.4 ± 0.8 | a | 6.6 ± 0.1 | c | 50.6 ± 2.2 | a | 8.4 ± 1.0 | bc | 56.9 ± 1.6 | a | 137.2 ± 9.3 | a | 44.2 |
| Low 3 | 5.3 ± 0.1 | ab | 54.4 ± 2.1 | b | 5.0 ± 0.8 | bc | 54.0 ± 1.6 | ab | 9.6 ± 0.4 | cd | 81.1 ± 4.8 | c | 138.6 ± 5.4 | a | 49.7 |
All values reported in mg g−1 dry solids with significant differences as identified by Tukey HSD multiple comparison (different lower case letters denote significant differences between accessions within treatments)
Alkali pre-enzyme = ≤ 2 mg gDS−1
n = 2 (accession means n = 8)
± = standard deviation