Skip to main content

Table 1 Compositional analysis of Douglas-fir Woodchips and forestry residues

From: Comparison of sugar content for ionic liquid pretreated Douglas-fir woodchips and forestry residues

Feedstock Treatment (particle size) Solid recovery, % Glucan, % Mannan, % Xylan, % Galactan, % Arabinan, % Lignin, %
Woodchips Untreated ------ 40.0 ± 0.5 14.3 ± 1.8 2.2 ± 0.1 3.2 ± 0.5 2.2 ± 0.6 24.6 ± 1.2
120 (2 mm) 70 ± 2.3 48.8 ± 2.7 12.5 ± 2.3 1.7 ± 1.0 2.6 ± 0.3 0.7 ± 0.1 21.6 ± 2.8
  120 (un-milled) 80 ± 2.9 45.9 ± 3.4 13.6 ± 0.4 1.7 ± 0.6 3.1 ± 0.6 0.6 ± 0.4 26.6 ± 3.4
  160 (2 mm) 67 ± 3.6 52.8 ± 2.9 6.0 ± 2.7 1.0 ± 0.2 2.8 ± 0.3 0.5 ± 0.1 19.7 ± 1.3
  160 (un-milled) 70 ± 2.3 50.8 ± 1.9 8.0 ± 1.5 1.2 ± 0.2 2.6 ± 0.3 0.3 ± 0.2 28.5 ± 0.5
Forestry residues Untreated - 35.4 ± 5.9 10.1 ± 2.2 2.5 ± 0.9 3.5 ± 0.4 0.5 ± 0.1 26.8 ± 1.3
120 (2 mm) 68 ± 2.8 37.0 ± 3.4 6.3 ± 0.4 2.9 ± 1.1 3.9 ± 0.2 0.6 ± 0.2 30.7 ± 3.1
  120 (un-milled) 77 ± 4.0 36.5 ± 1.7 5.1 ± 0.4 1.9 ± 1.2 3.7 ± 0.7 0.4 ± 0.2 28.4 ± 1.0
  160 (2 mm) 58 ± 2.7 38.3 ± 3.5 4.4 ± 0.8 1.5 ± 0.4 2.9 ± 0.2 0.1 ± 0.2 32.8 ± 1.0
  160 (un-milled) 65 ± 3.4 44.9 ± 2.9 3.7 ± 0.6 1.6 ± 0.2 3.0 ± 0.3 0.1 ± 0.2 30.6 ± 0.1