Comprehensive characterization of non-cellulosic recalcitrant cell wall carbohydrates in unhydrolyzed solids from AFEX-pretreated corn stover
Journal Article
·
· Biotechnology for Biofuels
- Michigan State Univ., East Lansing, MI (United States), Biomass Conversion Research Lab (BCRL), Chemical Engineering and Materials Science; Michigan State Univ., East Lansing, MI (United States), DOE Great Lakes Bioenergy Research Center (GLBRC); DOE/OSTI
- Michigan State Univ., East Lansing, MI (United States), Biomass Conversion Research Lab (BCRL), Chemical Engineering and Materials Science; Michigan State Univ., East Lansing, MI (United States), DOE Great Lakes Bioenergy Research Center (GLBRC)
- Univ. of Georgia, Athens, GA (United States), Complex Carbohydrate Research Center; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (US).Biosciences Division, BioEnergy Science Center (BESC)
Inefficient carbohydrate conversion has been an unsolved problem for various lignocellulosic biomass pretreatment technologies, including AFEX, dilute acid, and ionic liquid pretreatments. Previous work has shown 22% of total carbohydrates are typically unconverted, remaining as soluble or insoluble oligomers after hydrolysis (72 h) with excess commercial enzyme loading (20 mg enzymes/g biomass). Nearly one third (7 out of 22%) of these total unconverted carbohydrates are present in unhydrolyzed solid (UHS) residues. The presence of these unconverted carbohydrates leads to a considerable sugar yield loss, which negatively impacts the overall economics of the biorefinery. Current commercial enzyme cocktails are not effective to digest specific cross-linkages in plant cell wall glycans, especially some of those present in hemicelluloses and pectins. Thus, obtaining information about the most recalcitrant non-cellulosic glycan cross-linkages becomes a key study to rationally improve commercial enzyme cocktails, by supplementing the required enzyme activities for hydrolyzing those unconverted glycans.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC05-00OR22725; FC02-07ER64494
- OSTI ID:
- 1626982
- Journal Information:
- Biotechnology for Biofuels, Journal Name: Biotechnology for Biofuels Journal Issue: 1 Vol. 10; ISSN 1754-6834
- Publisher:
- BioMed CentralCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Ethanol production potential from AFEX™ and steam-exploded sugarcane residues for sugarcane biorefineries
|
journal | May 2018 |
Cooperative valorization of lignin and residual sugar to polyhydroxyalkanoate (PHA) for enhanced yield and carbon utilization in biorefineries
|
journal | January 2019 |
Similar Records
Effects of Extractive Ammonia Pretreatment on the Ultrastructure and Glycan Composition of Corn Stover
Influence of Physico-Chemical Changes on Enzymatic Digestibility of Ionic Liquid and AFEX pretreated Corn Stover
Understanding the structure and composition of recalcitrant oligosaccharides in hydrolysate using high-throughput biotin-based glycome profiling and mass spectrometry
Journal Article
·
Sun Sep 15 20:00:00 EDT 2019
· Frontiers in Energy Research
·
OSTI ID:1609252
Influence of Physico-Chemical Changes on Enzymatic Digestibility of Ionic Liquid and AFEX pretreated Corn Stover
Journal Article
·
Fri Dec 31 23:00:00 EST 2010
· Journal of the American Chemical Society
·
OSTI ID:1015020
Understanding the structure and composition of recalcitrant oligosaccharides in hydrolysate using high-throughput biotin-based glycome profiling and mass spectrometry
Journal Article
·
Mon Feb 14 19:00:00 EST 2022
· Scientific Reports
·
OSTI ID:1904710