Table 5
Physico-chemical characterization of RS, and long fibers and fines from its dry fractionation.
| Material | RS | Long fibers | Fines |
|---|---|---|---|
| Chemical composition (% of dry matter) | |||
| Minerals | 7.6 ± 0.4 | 7.1 ± 0.2 | 7.8 ± 0.3 |
| Lipids | 4.5 ± 0.1 | n.d. | n.d. |
| Proteins | 3.2 ± 0.1 | n.d. | n.d. |
| Cellulose | 42.5 ± 0.8 | 47.3 ± 0.1 | 46.3 ± 0.1 |
| Hemicelluloses | 9.1 ± 0.1 | 10.1 ± 0.3 | 4.1 ± 0.3 |
| Lignins | 11.9 ± 0.2 | 13.9 ± 0.1 | 15.1 ± 0.5 |
| Water-solubles | 8.1 ± 0.5 | 12.2 ± 0.4 | 9.6 ± 0.3 |
| Densities (kg/m3) | |||
| Apparent density | 62.3 ± 0.8 | 50.4 ± 1.1 | 65.0 ± 0.7 |
| Tapped density | 98.2 ± 1.1 | 65.0 ± 0.4 | 109.1 ± 1.5 |
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