Cargando…
Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis
Lignocellulosic biomass (LB) is an abundant and renewable resource from plants mainly composed of polysaccharides (cellulose and hemicelluloses) and an aromatic polymer (lignin). LB has a high potential as an alternative to fossil resources to produce second-generation biofuels and biosourced chemic...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6930145/ https://www.ncbi.nlm.nih.gov/pubmed/31921787 http://dx.doi.org/10.3389/fchem.2019.00874 |
_version_ | 1783482831461154816 |
---|---|
author | Zoghlami, Aya Paës, Gabriel |
author_facet | Zoghlami, Aya Paës, Gabriel |
author_sort | Zoghlami, Aya |
collection | PubMed |
description | Lignocellulosic biomass (LB) is an abundant and renewable resource from plants mainly composed of polysaccharides (cellulose and hemicelluloses) and an aromatic polymer (lignin). LB has a high potential as an alternative to fossil resources to produce second-generation biofuels and biosourced chemicals and materials without compromising global food security. One of the major limitations to LB valorisation is its recalcitrance to enzymatic hydrolysis caused by the heterogeneous multi-scale structure of plant cell walls. Factors affecting LB recalcitrance are strongly interconnected and difficult to dissociate. They can be divided into structural factors (cellulose specific surface area, cellulose crystallinity, degree of polymerization, pore size and volume) and chemical factors (composition and content in lignin, hemicelluloses, acetyl groups). Goal of this review is to propose an up-to-date survey of the relative impact of chemical and structural factors on biomass recalcitrance and of the most advanced techniques to evaluate these factors. Also, recent spectral and water-related measurements accurately predicting hydrolysis are presented. Overall, combination of relevant factors and specific measurements gathering simultaneously structural and chemical information should help to develop robust and efficient LB conversion processes into bioproducts. |
format | Online Article Text |
id | pubmed-6930145 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-69301452020-01-09 Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis Zoghlami, Aya Paës, Gabriel Front Chem Chemistry Lignocellulosic biomass (LB) is an abundant and renewable resource from plants mainly composed of polysaccharides (cellulose and hemicelluloses) and an aromatic polymer (lignin). LB has a high potential as an alternative to fossil resources to produce second-generation biofuels and biosourced chemicals and materials without compromising global food security. One of the major limitations to LB valorisation is its recalcitrance to enzymatic hydrolysis caused by the heterogeneous multi-scale structure of plant cell walls. Factors affecting LB recalcitrance are strongly interconnected and difficult to dissociate. They can be divided into structural factors (cellulose specific surface area, cellulose crystallinity, degree of polymerization, pore size and volume) and chemical factors (composition and content in lignin, hemicelluloses, acetyl groups). Goal of this review is to propose an up-to-date survey of the relative impact of chemical and structural factors on biomass recalcitrance and of the most advanced techniques to evaluate these factors. Also, recent spectral and water-related measurements accurately predicting hydrolysis are presented. Overall, combination of relevant factors and specific measurements gathering simultaneously structural and chemical information should help to develop robust and efficient LB conversion processes into bioproducts. Frontiers Media S.A. 2019-12-18 /pmc/articles/PMC6930145/ /pubmed/31921787 http://dx.doi.org/10.3389/fchem.2019.00874 Text en Copyright © 2019 Zoghlami and Paës. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Zoghlami, Aya Paës, Gabriel Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title | Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title_full | Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title_fullStr | Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title_full_unstemmed | Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title_short | Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis |
title_sort | lignocellulosic biomass: understanding recalcitrance and predicting hydrolysis |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6930145/ https://www.ncbi.nlm.nih.gov/pubmed/31921787 http://dx.doi.org/10.3389/fchem.2019.00874 |
work_keys_str_mv | AT zoghlamiaya lignocellulosicbiomassunderstandingrecalcitranceandpredictinghydrolysis AT paesgabriel lignocellulosicbiomassunderstandingrecalcitranceandpredictinghydrolysis |