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Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation
- Source :
- Frontiers in Bioengineering and Biotechnology, Vol 8 (2020), Frontiers in Bioengineering and Biotechnology
- Publication Year :
- 2020
- Publisher :
- Frontiers Media S.A., 2020.
-
Abstract
- Lignocellulosic biomasses are primarily composed of cellulose, hemicelluloses and lignin and these biopolymers are bonded together in a heterogeneous matrix that is highly recalcitrant to chemical or biological conversion processes. Thus, an efficient pretreatment technique must be selected and applied to this type of biomass in order to facilitate its utilization in biorefineries. Classical pretreatment methods tend to operate under severe conditions, leading to sugar losses by dehydration and to the release of inhibitory compounds such as furfural (2-furaldehyde), 5-hydroxy-2-methylfurfural (5-HMF), and organic acids. By contrast, supercritical fluids can pretreat lignocellulosic materials under relatively mild pretreatment conditions, resulting in high sugar yields, low production of fermentation inhibitors and high susceptibilities to enzymatic hydrolysis while reducing the consumption of chemicals, including solvents, reagents, and catalysts. This work presents a review of biomass pretreatment technologies, aiming to deliver a state-of-art compilation of methods and results with emphasis on supercritical processes.
- Subjects :
- 0301 basic medicine
Histology
lcsh:Biotechnology
Biomedical Engineering
Biomass
Lignocellulosic biomass
Bioengineering
02 engineering and technology
Review
Furfural
supercritical fluids
biomass pretreatment and fractionation
03 medical and health sciences
chemistry.chemical_compound
Enzymatic hydrolysis
lcsh:TP248.13-248.65
Cellulose
lignocellulosic biomass
biorefinery
Bioengineering and Biotechnology
021001 nanoscience & nanotechnology
Biorefinery
Pulp and paper industry
Supercritical fluid
biofuels
030104 developmental biology
chemistry
Biofuel
0210 nano-technology
Biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 22964185
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Frontiers in Bioengineering and Biotechnology
- Accession number :
- edsair.doi.dedup.....b7ef442e795e4d35ad0328055e3c8826