2-Naphtalenesulfonic Acid as Catalyst for Lignocellulosic Pretreatment: Study of Optimum Reaction Conditions by Response-Surface Methodology

R. Bortolo, G. Giovarruscio, P. Paganini & D. Bianchi
Many processes leading to production of second generation biofuels, such as ethanol, include a fermentation step that requires sugars obtained from the polyglycoside fraction of lignocellulosic biomasses. Unfortunately, fermentable sugars are not so easy to obtain, because of the cellulose natural resistance to hydrolysis, due to its crystalline structure. A pretreatment step is necessary in order to reduce crystallinity, increase porosity and improve hydrolytic enzymes accessibility to the fibers. Among the pretreatment processes, those using...