Table 4 Structural composition of untreated and pretreated cotton gin trash (CGT)
Compound | CGT | U + HW + E | U-NaOH 5% + HW + E | U-NaOH 10% + HW + E | U-NaOH 15% + HW + E |
|---|---|---|---|---|---|
Water and ethanol extractives | 19.6 | 15.3 | 14.9 | 14.3 | 14.5 |
Acid insoluble material | 25.5 | 22.9 | 20.5 | 19.5 | 18.7 |
Arabinose | 1.5 | 1.2 | 1.3 | 1.4 | 1.9 |
Xylose | 5.7 | 5.4 | 5.3 | 5.1 | 5.2 |
Mannose | 1.1 | 1.3 | 1.1 | 1.3 | 1.3 |
Galactose | 1.7 | 1.6 | 1.3 | 1.4 | 1.2 |
Glucose | 24.9 | 29.8 | 31.3 | 33.1 | 35.5 |
Ash | 10.7 | 10.3 | 11.7 | 12.1 | 12.5 |