Fig. 5

Xylan component yields from pretreatment at 150 °C, 20 min, 0.5 % sulfuric acid (w/w biomass). 1 Historical deacetylation process performed at 10 % total solids, 80 °C, 120 min, 1.7 g NaOH/g acetate (equivalent to 0.4 % w/w of biomass); 2 (a–c) proposed high solids deacetylation process performed at 30 % total solids, 70 °C, 90 min, 1.0 g NaOH/g acetate (equivalent to 0.24 % w/w of biomass); a–c represent triplicate deacetylation experiment; error bars represent the standard deviation of sugar yields from triplicate runs of acid pretreatment using each batch of the deacetylated corn stover