Title:
Imaging Techniques for Understanding Physico-mechanical Modifications of Lignocellulosic Biomass Due to Hydrothermal Pretreatment
Author(s):
Parlatore Lancha, J., Colin, J., Lu, P., Almeida, G., Perré, P.
Document(s):
Paper
Abstract:
Steam explosion is a promising lignocellulosic biomass pretreatment for improving carbohydrates accessibility to enzymatic hydrolysis. The mechanical properties degradation during hydrothermal step is a key parameter for the process efficiency. In this work, two imaging techniques were used to assess changes in ultrastructural characteristics of poplar cell wall caused by hydrothermal pretreatment. Firstly, anatomical changes on the cell wall structure were observed by X-ray nano -tomography. Secondly, chemical changes in the different layers of the cell wall before and after pretreatment were observed by two-dimensional chemical mapping through Raman micro-spectrometry. The comparison between pretreated and raw biomass revealed shrinkage and thinning of cell wall as well as sub-parietal chemical changes.
Keywords:
steam explosion, pretreatment, chemical composition, lignocellulosic sources, characterization, morphology
Topic:
Biomass Conversion Technologies for Energy Carriers, Chemicals and Materials
Subtopic:
Bio-alcohols from lignocellulosic biomass and pretreatment
Event:
27th European Biomass Conference and Exhibition
Session:
3BO.3.4
Pages:
1050 - 1053
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-3BO.3.4
Price:
FREE
