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Table 1 Chemical composition and Gross Calorific Value (GCV) of the three raw materials

From: Tagasaste, leucaena and paulownia: three industrial crops for energy and hemicelluloses production

Property1 Tagasaste Leucaena Paulownia trihybrid Eucalyptus globulus
This work Other authors2 This work Other authors3 This work Other authors4 Other authors5
Ash, % 0.8 0.7 ± 0.1 1.4 1.4 ± 0.1 n.d 0.9 ± 0.1 0.5 ± 0.1
Ethanol extract., % 2.8 2.3 ± 0.1 n.d 1.7 ± 1.1 n.d 4.6 ± 0.1 3.1 ± 0.8
Glucan, % 41.4 38.9 ± 3.4 32.2 38.0 ± 2.4 34.2 44.0 ± 3.3 44.4 ± 3.7
Lignin, Klason % 20.1 19.8 ± 1.9 21.5 24.8 ± 0.6 27.2 27.8 ± 1.1 27.6 ± 4.9
Xylan, % 18.5 19.9 ± 1.3 15.5 15.7 ± 0.1 18.3 15.7 ± 0.2 18.8 ± 1.4
Araban, % 0.6 0.6 ± 0.3 1.0 1.5 ± 0.3 1.1 1.1 ± 0.1 2.5 ± 1.1
Acetylgroups, % 3.3 4.4 ± 0.6 2.1 3.3 ± 0.5 3.3 4.4 ± 0.2 3.4 ± 0.1
GCV, kJ/kg o.d.b 19,375 19,592 ± 28 19,060 18,981 ± 102 19,362 20,300 19 326 ± 160
  1. n.d. not determined
  2. 1All percentages are referred to dry matter
  3. 2[18, 19]
  4. 3[27, 78, 79]
  5. 4[30, 31, 80]
  6. 5[81, 82]