Figure 7From: Effect of mechanical disruption on the effectiveness of three reactors used for dilute acid pretreatment of corn stover Part 1: chemical and physical substrate analysisCorrelation of the orange/blue (O/B ratio) with cellulose conversion (after 96 h) for the untreated and pretreated samples. ZipperClave®; SG, steam gun; HS, horizontal screw.Back to article page