Table 4.
Effect of solids loading variation on the liberation of monosaccharides directly into the pre-treatment hydrolysate
| (mg g−1)a | L. digitata | D. carnosab | U. lactuca | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5% | 10% | 15% | 20% | 25% | 5% | 10% | 5% | 10% | 15% | 20% | 25% | |
| Mannitol | 21.6 ± 3.2 | 17.6 ± 0.4 | 4.4 ± 0.1 | 2.6 ± 0.2 | 1.8 ± 0.1 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 |
| Fucose | 12.8 ± 0.1 | 8.8 ± 1.1 | 5.9 ± 0.7 | 5.8 ± 0.3 | 4.5 ± 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Arabinose | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Galactose | 4.3 ± 0.4 | 2.5 ± 0.3 | 1.6 ± 0.1 | 1.4 ± 0.1 | 1.0 ± 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Glucose | 3.0 ± 0.1 | 1.7 ± 0.2 | 1.0 ± 0.1 | < 1.0 | < 1.0 | 0.0 | 0.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 |
| Xylose | 4.3 ± 0.3 | 3.1 ± 0.4 | 2.0 ± 0.2 | 1.7 ± 0.1 | 1.3 ± 0.1 | 0.0 | 0.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 | < 1.0 |
amg of monosaccharide released per g of seaweed directly into the pre-treatment hydrolysate
bNo pre-treatment hydrolysates were generated from 15, 20 and 25 % solids loading tests, therefore no analysis was performed