Contribution of Structural Modification to Enhanced Enzymatic Hydrolysis and 3-D Structural Analysis of Steam-Exploded Wood using X-Ray Tomography
Journal article, 2016
Steam explosion pretreatment modifies both the chemical and physical structures of a biomass. Chemical modifications are generated during the treatment of biomass with steam at high temperature. Physical modifications are created during the explosion step, which produces disintegrated and defibrillated biomass. In this study, the contribution of each modification to an increase in enzymatic hydrolysis has been studied. It was found that both physical and chemical modifications contributed to an increase in enzymatic hydrolysability. Additionally, high resolution X-ray tomography was performed to identify the structural modification created during the steam explosion process. Comparison of the 3-D microstructure of a steam-exploded wood sample with an untreated wood sample revealed that several kinds of cracks were created during the explosion step, and the micro-structure of the wood sample was vigorously destroyed.
X-ray tomography
chemistry
poplar
Steam treatment
size
softwood
3D structure
cellulose
bioethanol
lignin
fiber
Enzymatic hydrolysis
explosion pretreatment
aspen wood
Steam explosion
Materials Science
Author
Muhammad Muzamal
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Jenny Arnling Bååth
Wallenberg Wood Science Center (WWSC)
Chalmers, Biology and Biological Engineering, Industrial Biotechnology
Lisbeth Olsson
Chalmers, Biology and Biological Engineering, Industrial Biotechnology
Wallenberg Wood Science Center (WWSC)
Anders Rasmuson
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Wallenberg Wood Science Center (WWSC)
BioResources
1930-2126 (ISSN) 19302126 (eISSN)
Vol. 11 4 8509-8521Roots
Basic sciences
Subject Categories
Chemical Engineering
Environmental Biotechnology
DOI
10.15376/biores.11.4.8509-8521