| A novel mechanism and kinetic model to explain enhanced xylose yields from dilute sulfuric acid compared to hydrothermal pretreatment of corn stover. | |
| | |
MedLine Citation:
|
PMID: 21764298 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Pretreatment of corn stover in 0.5% sulfuric acid at 160°C for 40min realized a maximum monomeric plus oligomeric xylose yield of 93.1% compared to a maximum of only 71.5% for hydrothermal (no added mineral acid) pretreatment at 180°C for 30min. To explain differences in dilute acid and hydrothermal yields, a fast reacting xylan fraction (0.0889) was assumed to be able to directly form monomeric xylose while a slow reacting portion (0.9111) must first form oligomers during hydrothermal pretreatment. Two reactions to oligomers were proposed: reversible from fast reacting xylan and irreversible from slow reacting xylan. A kinetic model and its analytical solution simulated xylan removal data well for dilute acid and hydrothermal pretreatment of corn stover. These results suggested that autocatalytic reactions from xylan to furfural in hydrothermal pretreatment were controlled by oligomeric xylose decomposition, while acid-catalytic reactions in dilute acid pretreatment were controlled by monomeric xylose decomposition. |
| | |
Authors:
|
Jiacheng Shen; Charles E Wyman |
Related Documents
:
|
22554488 - Design and docking studies of [diethylenetriaminepentaacetic acid-(amino acid)2] with a... 17185558 - Growth of probiotic lactobacilli in the presence of oleic acid enhances subsequent surv... 21989638 - Serial optimization of biomass production using microalga nannochloris oculata and corr... 15854838 - The effect of growth regulators and sucrose on anthocyanin production in camptotheca ac... 22554488 - Design and docking studies of [diethylenetriaminepentaacetic acid-(amino acid)2] with a... 11687938 - Branched-chain fatty acid biosynthesis in escherichia coli. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-4-7 |
Journal Detail:
|
Title: Bioresource technology Volume: - ISSN: 1873-2976 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
|
Created Date: 2011-7-18 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2011. Published by Elsevier Ltd. |
Affiliation:
|
Center for Environmental Research and Technology, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, CA 92507, USA; Northwest Irrigation and Soils Research Laboratory, Agricultural Research Service, United States Department of Agriculture, 3793 N. 3600 E. Kimberly, ID 83341, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Anaerobic biohydrogen production from wheat stalk by mixed microflora: Kinetic model and particle si...
Next Document: Adsorption of copper and zinc by biochars produced from pyrolysis of hardwood and corn straw in aque...