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.

Steam explosion

chemistry

poplar

fiber

3D structure

cellulose

Materials Science

explosion pretreatment

bioethanol

Enzymatic hydrolysis

Steam treatment

lignin

aspen wood

softwood

X-ray tomography

size

Author

Muhammad Muzamal

Chalmers, Chemistry and Chemical Engineering, Chemical Technology, Chemical Environmental Science

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, Chemical Environmental Science

Wallenberg Wood Science Center (WWSC)

BioResources

1930-2126 (ISSN)

Vol. 11 4 8509-8521

Roots

Basic sciences

Subject Categories

Chemical Engineering

Environmental Biotechnology

DOI

10.15376/biores.11.4.8509-8521

More information

Latest update

8/24/2018