Fig. 5From: Process options for the recovery of a pentosan-enriched fraction from wheat-based bioethanol thin stillageAlkaline treatment (AT) with sodium hydroxide (NaOH) using design of experiment: influence of temperature, reaction time and concentration of NaOH on the pentosan content ωp in (%DM) of the solid residue for 0.10 mol/L NaOH (left), 0.15 mol/L NaOH (middle) and 0.20 mol/L NaOH (right)Back to article page