Two-stage dilute-acid and organic-solvent lignocellulosic pretreatment for enhanced bioprocessing
| Autor: | John C. Telotte, S. Ramakrishnan, Jonathan J. Stickel, G. Brodeur |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Environmental Engineering Time Factors Morpholines Biomass Bioengineering Cellulase 010501 environmental sciences 01 natural sciences Lignin Zea mays Cyclic N-Oxides chemistry.chemical_compound Hydrolysis 010608 biotechnology Enzymatic hydrolysis Hemicellulose Cellulose Waste Management and Disposal Glucans 0105 earth and related environmental sciences Waste management biology Renewable Energy Sustainability and the Environment food and beverages General Medicine Sulfuric Acids Pulp and paper industry Saccharum Corn stover chemistry biology.protein Solvents Bagasse Biotechnology |
| Zdroj: | Bioresource technology. 220 |
| ISSN: | 1873-2976 |
| Popis: | A two stage pretreatment approach for biomass is developed in the current work in which dilute acid (DA) pretreatment is followed by a solvent based pretreatment (N-methyl morpholine N oxide - NMMO). When the combined pretreatment (DAWNT) is applied to sugarcane bagasse and corn stover, the rates of hydrolysis and overall yields (>90%) are seen to dramatically improve and under certain conditions 48h can be taken off the time of hydrolysis with the additional NMMO step to reach similar conversions. DAWNT shows a 2-fold increase in characteristic rates and also fractionates different components of biomass - DA treatment removes the hemicellulose while the remaining cellulose is broken down by enzymatic hydrolysis after NMMO treatment to simple sugars. The remaining residual solid is high purity lignin. Future work will focus on developing a full scale economic analysis of DAWNT for use in biomass fractionation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect