Enzymatic depolymerisation of cellulose

Enhancing Enzymatic Hydrolysis of Cellulose by Ultrasonic Pretreatment

Slurries of rice-straw cellulose (obtained by delignification and removal of hemicelluloses from the powdered raw material) were subjected to ultrasonic waves at different intensities for various times (constant temperature). Susceptibility of the samples to cellulose-hydrolysis increased initially with pretreatment time, reaching a maximum or a constant level thereafter. Maximum glucose yi...

Effect of Cellulose Structure on Enzymatic Hydrolysis

Enzymatic hydrolysis of non-dried and dried cellulose samples having various particles size, degree of polymerization, porosity, crystalline polymorph, and content of non-crystalline domains has been studied. Regression analysis was carried out to determine contribution of various structural features of cellulose samples to their hydrolysability. It was found that particle size, degree of polym...

The kinetics of cellulose enzymatic hydrolysis

Väljamäe, P. 2002. The kinetics of cellulose enzymatic hydrolysis: implications of the synergism between enzymes. Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 781. 54 pp. Uppsala. ISBN 91-554-5479-8. The hydrolysis kinetics of bacterial cellulose and its derivatives by Trichoderma reesei cellulases was studied. The c...

Enzymatic hydrolysis of native cellulose nanofibrils and other cellulose model films: effect of surface structure.

Model films of native cellulose nanofibrils, which contain both crystalline cellulose I and amorphous domains, were used to investigate the dynamics and activities of cellulase enzymes. The enzyme binding and degradation of nanofibril films were compared with those for other films of cellulose, namely, Langmuir-Schaefer and spin-coated regenerated cellulose, as well as cellulose nanocrystal cas...

Loosening Xyloglucan for The Enzymatic Degradation of Cellulose in Wood