title: Influence of steam explosion on physicochemical properties and hydrolysis rate of pure cellulose fibers.
abstract: The aim of this study is to compare the effect of different steam explosion treatments on the physicochemical properties and the hydrolysis rate of a pure bleached cellulose. The results showed that moderate steam explosion treatments (severity factor below 5.2) did not appear to improve the enzymatic hydrolysis rate of the cellulose fibers. However, characterization of the samples showed a modification of the physicochemical properties of the cellulose, resulting in an increase of the water retention values (WRV) coupled to an increase of the overall crystallinity. For higher treatment intensities, an important thermal degradation of the cellulose was highlighted. This thermal degradation caused an important modification of the cellulose composition which leads to a decrease of the hydrolysis rate.
authors.affiliation: ULg - Gembloux Agro-Bio Tech, Department of Industrial Biological Chemistry, Passage des Déportés N°2, B-5030 Gembloux, Belgium. nicolas.jacquet@ulg.ac.be
authors.forename: N
authors.initials: N
authors.lastname: Jacquet
authors.forename: C
authors.initials: C
authors.lastname: Vanderghem
authors.forename: S
authors.initials: S
authors.lastname: Danthine
authors.forename: N
authors.initials: N
authors.lastname: Quiévy
authors.forename: C
authors.initials: C
authors.lastname: Blecker
authors.forename: J
authors.initials: J
authors.lastname: Devaux
authors.forename: M
authors.initials: M
authors.lastname: Paquot
mesh_terms: D001234:Aspergillus niger / Q000201:enzymology; D056804:Biofuels; D044602:Cellulases / Q000378:metabolism*; D002482:Cellulose / Q000378:metabolism*; D003460:Crystallization; D006868:Hydrolysis; D007700:Kinetics; D013227:Steam; D013696:Temperature; D013818:Thermogravimetry; D013997:Time Factors; D014242:Trichoderma / Q000201:enzymology; D014867:Water / Q000378:metabolism; D014961:X-Ray Diffraction
chemical_list: D056804:Biofuels; D013227:Steam; D014867:Water; D002482:Cellulose; D044602:Cellulases