Back to Search
Start Over
Comprehension of an organosolv process for lignin extraction on Festuca arundinacea and monitoring of the cellulose degradation
Comprehension of an organosolv process for lignin extraction on Festuca arundinacea and monitoring of the cellulose degradation
- Source :
- Industrial Crops and Products. 94:308-317
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- It is commonly accepted that the current society needs to partially substitute fossil resources by renewable ones. Among many solutions, one approach consists in the development of biorefinery involving lignocellulosic biomass to produce bio-based materials and fuels. This study focuses on the comprehension of an organosolv treatment designed to break the complex lignocellulosic structure for high purity lignin extraction from tall fescue (Festuca arundinacea Schreb.). This grass benefits from an increasing interest in Western Europe and has been suggested as feedstock for biorefinery. However, its use as material for high purity lignin production has not been determined yet. Ethanol/water, 92/8% [v/v] with H2SO4 0.32 M was investigated at pilot scale under conventional heating (5 °C min−1 during 30 min and stabilized at 148 °C for 5 min). Precipitated lignin were analyzed as well as the composition of side-stream products (recovered cellulosic pulp and the aqueous hydrolysate). Lignin has been recovered at a purity level of 90% with a yield of 60%. The main contaminants were nitrogen containing compounds and degraded hemicelluloses. 2D-HSQC NMR (Two Dimension-Heteronuclear Single Quantum Correlation Nuclear Magnetic Resonance) revealed a co-extraction of ferulates and coumarates function as well as arabinoxylan. Cellulose was recovered at 53% purity with 60% yield. The conditions appear to be too harsh for tall fescue and led to significant amount of cellulose degradation. A process using a lower alcohol concentration will be developed to provide better yields of both cellulose and lignin.
- Subjects :
- 0106 biological sciences
010405 organic chemistry
Pulp (paper)
Organosolv
Lignocellulosic biomass
engineering.material
Pulp and paper industry
Biorefinery
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Agronomy
chemistry
Cellulosic ethanol
010608 biotechnology
engineering
Lignin
Biorefining
Cellulose
Agronomy and Crop Science
Subjects
Details
- ISSN :
- 09266690
- Volume :
- 94
- Database :
- OpenAIRE
- Journal :
- Industrial Crops and Products
- Accession number :
- edsair.doi...........9cbe7afc9fa51ec5168b3d2f9f207449
- Full Text :
- https://doi.org/10.1016/j.indcrop.2016.09.003