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.
lignin
chemistry
fiber
Steam treatment
explosion pretreatment
Materials Science
bioethanol
cellulose
Steam explosion
aspen wood
X-ray tomography
softwood
size
poplar
Enzymatic hydrolysis
3D structure
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
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 8509-8521Driving Forces
Sustainable development
Areas of Advance
Energy
Life Science Engineering (2010-2018)
Materials Science
Roots
Basic sciences
Subject Categories (SSIF 2011)
Chemical Engineering
Environmental Biotechnology
DOI
10.15376/biores.11.4.8509-8521