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Table 3 Recovery of the glucose and mannose in the water-insoluble solids after the first and second acid hydrolysis steps, expressed as % of the theoretical available in the raw material

From: The influence of solid/liquid separation techniques on the sugar yield in two-step dilute acid hydrolysis of softwood followed by enzymatic hydrolysis

Pretreatment1 Glucose Mannose
First step, +W 86.6 10.0
First step, -W 86.0 9.8
Second step, P+W 70.7 6.3
Second step, F+W 71.2 5.9
Second step, P-W 69.6 7.0
Second step, F-W 65.4 6.8
  1. 1 Experimental designs: with washing (+W) and without washing (-W) of pressed (P) and vacuum-filtered (F) material.