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Understanding the interactions between enzymes and substrates and the property changes of the substrates during the process is vital for efficiently producing fuels and chemicals from lignocellulosic biomass. In this manuscript, quartz crystal microbalance with dissipation (QCM-D) technique was employed as a tool to investigate the adsorption and hydrolysis behaviors of four fungal cellulases (Trichoderma reesei...
Rod-shaped cellulose nanocrystals obtained by acid hydrolysis of eucalyptus fibers (CNCa) presented high aspect ratio (estimated length and width of 180 and 5 nm, respectively) and zeta potential of −(17 ± 1) mV at pH 6. This typical morphology of cellulose nanocrystals was in contrast to nanoparticles obtained upon enzymatic hydrolysis of bacterial cellulose (CNCe), which were asymmetric and irregular...
Electrokinetic tests, based on the streaming potential method, were used to elucidate interactions between cationic polyelectrolytes and cellulosic fibers and to reveal aspects of fibers’ nanoporosity. The fibrillated and nanoporous nature of bleached kraft fibers gave rise to time-dependent changes in streaming potential, following treatment of the wetted fibers with poly-diallyldimethylammonium...
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