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Table 3 Chemical composition (dry weight basis (%)) of raw materials and unwashed WIS

From: Tween 40 pretreatment of unwashed water-insoluble solids of reed straw and corn stover pretreated with liquid hot water to obtain high concentrations of bioethanol

Chemical composition Reed straw Corn stover
  Raw material Unwashed WIS Raw material Unwashed WIS
Benzene-alcohol (2:1) extractive 8.39 ± 0.10 12.14 ± 0.10 10.95 ± 0.07 19.97 ± 0.19
Glucan 40.52 ± 0.03 55.87 ± 0.03 38.75 ± 0.04 57.07 ± 0.03
Xylan 25.86 ± 0.19 3.05 ± 0.03 23.51 ± 0.18 1.80 ± 0.02
Acid-insoluble lignin 16.22 ± 0.02 17.67 ± 0.03 15.62 ± 0.16 16.89 ± 0.03
Acid-soluble lignin 2.0 ± 0.1 0.6 ± 0 2.4 ± 0 0.4 ± 0.1
Ash 3.59 ± 0.14 8.67 ± 0.10 3.65 ± 0.08 0.40 ± 0.04