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Table 2 Cellulosic, hemicellulosic and lignocellulosic substrates used in the investigation

From: Evaluation of four ionic liquids for pretreatment of lignocellulosic biomass

Category Substrate Description Source/reference
Crystalline samples Cotton Linear cellulosic homopolysaccharide of β-D-glucopyranosyl units (95-99%), crystallinity: 64.9%, typical DP: 8,100 - 15,300. Selefatrade AB/[3133]
  Sigmacell Type 20 Linear cellulosic homopolysaccharide of β-D-glucopyranosyl units, crystallinity: 36.1%, DP: 209. Sigma-Aldrich/[34, 35]
Amorphous samples Regenerated amorphous cellulose Amorphous cellulosic homopolysaccharide prepared from Sigmacell Type 20 using phosphoric acid. This work/Prepared using method of Zhang et al.[36].
  Beech-wood xylan Branched hemicellulosic heteropolysaccharide, typical DP of hardwood xylan: 100–200. Sigma-Aldrich/[32]
  Locust bean gum galactomannan Branched hemicellulosic heteropolysaccharide, DP: 900–1500. Sigma-Aldrich/[32]
Wood samples Hybrid aspen (Populus tremula x tremuloides) Hardwood lignocellulose, see Table 3. Umeå Plant Science Centre (<http://www.upsc.se>)/this work
  Norway spruce (Picea abies) Softwood lignocellulose, see Table 3. SEKAB AB/this work