Fig. 4From: Bioeconomic production of high-quality chitobiose from chitin food wastes using an in-house chitinase from Vibrio campbelliiQuantitative analysis of hydrolysis products by HPLC. Substrates were a squid pen, b shrimp shell and c crab shell chitin, shown as bar graphs of concentration against the reaction time. Concentrations were estimated from the corresponding standard calibration curve, for the three main hydrolytic products GlcNAc, (GlcNAc)2 and (GlcNAc)3). The control (C) contained the substrate but no enzyme. Values are means ± SDBack to article page