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Table 2 Carbohydrate contents of wheat straw and corn cob acidic and enzymatic hydrolyzed liquor and residue fermented to produce xylitol with microorganisms (a-Kluyveromyces and b-S. cerevisiae) at pH 6 and 7, respectively

From: Acidic and enzymatic saccharification of waste agricultural biomass for biotechnological production of xylitol

Substrates Treatments Free sugars Xylitol pH
Acid and enzyme Xylose (I) g/L Glucose g/L Cellobiose g/L Yeast Qs g/L/h Xylitol (P) g/L Xylitol yield % Productivity g/L/h
Wheat straw WS.A,E.H. L 27.772 3.947 0.209 A 0.116 3.659 65.561 0.014 7
B 0.076 3.064 83.578 0.017 7
WS.A,E.H. R 27.382 3.044 0.005 A 0.480 19.639 85.242 0.018 7
A 0.570 24.592 89.807 0.019 6
Corn Cob CC.A,E.H. L 28.894 0.017 0.237 A 0.130 5.513 87.716 0.018 7
B 0.227 4.508 41.282 0.009 7
CC.A,E.H. R 19.0395 3.744 0.045 A 0.403 3.5924 18.542 0.004 7
A 0.374 5.687 31.596 0.007 6
  1. I, initial xylose concentration; P, product; Qs, rate of substrate consumption; A, Kluyveromyces; B, S. cerevisiae