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.
3D structure
lignin
aspen wood
softwood
Enzymatic hydrolysis
chemistry
Steam treatment
fiber
Steam explosion
explosion pretreatment
Materials Science
X-ray tomography
poplar
bioethanol
cellulose
size
Author
Muhammad Muzamal
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Jenny Arnling Bååth
Chalmers, Biology and Biological Engineering, Industrial Biotechnology
Wallenberg Wood Science Center (WWSC)
Lisbeth Olsson
Wallenberg Wood Science Center (WWSC)
Chalmers, Biology and Biological Engineering, Industrial Biotechnology
Anders Rasmuson
Wallenberg Wood Science Center (WWSC)
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
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