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Table 2 Carbohydrates released from pretreated wheat straw and giant reed after 48 h hydrolysis by cellulases and xylan-acting enzymes in 50 mM sodium citrate buffer at pH 5.0 and 45°C

From: The role of acetyl xylan esterase in the solubilization of xylan and enzymatic hydrolysis of wheat straw and giant reed

Substrate Enzyme preparation Glucose Xylose Xylobiose Xylotriose Cellobiose
Wheat straw CEL 28.2 bdla 2.9 0.4 0.5
  CEL+XYL 50.4 7.7 34.6 5.7 1.2
  CEL+XYL+ARA 46.6 9.8 29.8 4.6 0.9
  CEL+XYL+AXE 55.6 17.7 46.6 bdl 1.0
Giant reed CEL 10.8 2.1 2.1 1.1 0.1
  CEL+XYL 26.6 5.5 16.4 5.2 0.1
  CEL+XYL+ARA 26.8 5.9 16.6 5.2 0.1
  CEL+XYL+AXE 28.9 8.7 21.1 bdl 0.1
  1. Glucose and cellobiose are expressed as % of cellulose (as glucose), and xylose, xylobiose and xylotriose are expressed as % of xylan (as xylose) in wheat straw or giant reed. The values of xylobiose, xylotriose and xylotetraose contained both acetylated and non-acetylated xylo-oligosaccharides. ARA: α-L-arabinofuranosidase; AXE: acetyl xylan esterase; bdl: below detection limit; CEL: mixture of cellulose-acting enzymes; XYL: xylanase.