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Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance
Lignin, a complex aromatic polymer in terrestrial plants, contributes significantly to biomass recalcitrance to microbial and/or enzymatic deconstruction. To reduce biomass recalcitrance, substantial endeavors have been exerted on pretreatment and lignin engineering in the past few decades. Lignin r...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114238/ https://www.ncbi.nlm.nih.gov/pubmed/27917379 http://dx.doi.org/10.3389/fchem.2016.00045 |
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author | Li, Mi Pu, Yunqiao Ragauskas, Arthur J. |
author_facet | Li, Mi Pu, Yunqiao Ragauskas, Arthur J. |
author_sort | Li, Mi |
collection | PubMed |
description | Lignin, a complex aromatic polymer in terrestrial plants, contributes significantly to biomass recalcitrance to microbial and/or enzymatic deconstruction. To reduce biomass recalcitrance, substantial endeavors have been exerted on pretreatment and lignin engineering in the past few decades. Lignin removal and/or alteration of lignin structure have been shown to result in reduced biomass recalcitrance with improved cell wall digestibility. While high lignin content is usually a barrier to a cost-efficient application of bioresources to biofuels, the direct correlation of lignin structure and its concomitant properties with biomass remains unclear due to the complexity of cell wall and lignin structure. Advancement in application of biorefinery to production of biofuels, chemicals, and bio-derived materials necessitates a fundamental understanding of the relationship of lignin structure and biomass recalcitrance. In this mini-review, we focus on recent investigations on the influence of lignin chemical properties on bioprocessability—pretreatment and enzymatic hydrolysis of biomass. Specifically, lignin-enzyme interactions and the effects of lignin compositional units, hydroxycinnamates, and lignin functional groups on biomass recalcitrance have been highlighted, which will be useful not only in addressing biomass recalcitrance but also in deploying renewable lignocelluloses efficiently. |
format | Online Article Text |
id | pubmed-5114238 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-51142382016-12-02 Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance Li, Mi Pu, Yunqiao Ragauskas, Arthur J. Front Chem Chemistry Lignin, a complex aromatic polymer in terrestrial plants, contributes significantly to biomass recalcitrance to microbial and/or enzymatic deconstruction. To reduce biomass recalcitrance, substantial endeavors have been exerted on pretreatment and lignin engineering in the past few decades. Lignin removal and/or alteration of lignin structure have been shown to result in reduced biomass recalcitrance with improved cell wall digestibility. While high lignin content is usually a barrier to a cost-efficient application of bioresources to biofuels, the direct correlation of lignin structure and its concomitant properties with biomass remains unclear due to the complexity of cell wall and lignin structure. Advancement in application of biorefinery to production of biofuels, chemicals, and bio-derived materials necessitates a fundamental understanding of the relationship of lignin structure and biomass recalcitrance. In this mini-review, we focus on recent investigations on the influence of lignin chemical properties on bioprocessability—pretreatment and enzymatic hydrolysis of biomass. Specifically, lignin-enzyme interactions and the effects of lignin compositional units, hydroxycinnamates, and lignin functional groups on biomass recalcitrance have been highlighted, which will be useful not only in addressing biomass recalcitrance but also in deploying renewable lignocelluloses efficiently. Frontiers Media S.A. 2016-11-18 /pmc/articles/PMC5114238/ /pubmed/27917379 http://dx.doi.org/10.3389/fchem.2016.00045 Text en Copyright © 2016 Li, Pu and Ragauskas. 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) or licensor 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 Li, Mi Pu, Yunqiao Ragauskas, Arthur J. Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title | Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title_full | Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title_fullStr | Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title_full_unstemmed | Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title_short | Current Understanding of the Correlation of Lignin Structure with Biomass Recalcitrance |
title_sort | current understanding of the correlation of lignin structure with biomass recalcitrance |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5114238/ https://www.ncbi.nlm.nih.gov/pubmed/27917379 http://dx.doi.org/10.3389/fchem.2016.00045 |
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