Fig. 6From: Overcoming biomass recalcitrance by synergistic pretreatment of mechanical activation and metal salt for enhancing enzymatic conversion of lignocelluloseSaccharification yields of a MA-pretreated holocellulose and a + different pretreated lignin: b untreated, c MA, d MA + AlCl3, e MA + FeCl3, f MA + Al(NO3)3, and g MA + Fe(NO3)3Back to article page