Abstract
Heterogeneity and rigidity of lignocellulose causing resistance to its deconstruction have provided technical and economic challenges in the current biomass conversion processes. Lignin has been considered as a crucial recalcitrance component in biomass utilization. An in-depth understanding of lignin properties and their influences on biomass conversion can provide clues to improve biomass utilization. Also, utilization of lignin can significantly increase the economic viability of biorefinery. Recent lignin-targeting pretreatments have aimed not only to overcome recalcitrance for biomass conversion but also to selectively fractionate lignin for lignin valorization. Numerous studies have been conducted in biomass characteristics and conversion technologies, and the role of lignin is critical for lignin valorization and biomass pretreatment development. This review provides a comprehensive review of lignin-related biomass characteristics, the impact of lignin on the biological conversion of biomass, and recent lignin-targeting pretreatment strategies. The desired lignin properties in biorefinery and future pretreatment directions are also discussed.
| Original language | English |
|---|---|
| Article number | 122784 |
| Journal | Bioresource Technology |
| Volume | 301 |
| DOIs | |
| State | Published - Apr 2020 |
Funding
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. This study was supported and performed as part of the Center for Bioenergy Innovation (CBI). The CBI is U.S Department of Energy Bioenergy Research Centers supported by the Office of Biological and Environmental Research in the DOE Office of Science. This research is also partly funded by U.S. Department of Energy Office of Science, Office of Biological and Environmental Research under the Genomic Science Program (FWP ERKP752). The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. This manuscript has been authored by UT- Battelle , LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy . This study was supported and performed as part of the Center for Bioenergy Innovation (CBI). The CBI is U.S Department of Energy Bioenergy Research Centers supported by the Office of Biological and Environmental Research in the DOE Office of Science . This research is also partly funded by U.S. Department of Energy Office of Science , Office of Biological and Environmental Research under the Genomic Science Program ( FWP ERKP752 ). The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Appendix A
Keywords
- Biorefinery
- Lignin characteristics
- Lignin inhibition
- Lignin valorization
- Recalcitrance