title: Corn stover fractions and bioenergy: chemical composition, structure, and response to enzyme pretreatment.
abstract: Information is presented on structure, composition, and response to enzymes of corn stover related to barriers for bioconversion to ethanol. Aromatic compounds occurred in most tissue cell walls. Ferulic acid esterase treatment before cellulase treatment significantly improved dry weight loss and release of phenolic acids and sugars in most fractions over cellulase alone. Leaf fractions were considerably higher in dry weight loss and released sugars with esterase treatment, but stem pith cells gave up the most phenolic acids. Results help identify plant fractions more appropriate for coproducts and bioconversion and those more suitable as residues for soil erosion control.
authors.affiliation: Russell Research Center, PO Box 5677, USDA-ARS, Athens, GA 30604, USA. deakin@qaru.ars.usda.gov
authors.forename: Danny E
authors.initials: DE
authors.lastname: Akin
authors.forename: W Herbert
authors.initials: WH
authors.lastname: Morrison
authors.forename: Luanne L
authors.initials: LL
authors.lastname: Rigsby
authors.forename: Franklin E
authors.initials: FE
authors.lastname: Barton
authors.forename: David S
authors.initials: DS
authors.lastname: Himmelsbach
authors.forename: Kevin B
authors.initials: KB
authors.lastname: Hicks
mesh_terms: D019149:Bioreactors / Q000382:microbiology; D018929:Cell Culture Techniques / Q000379:methods; D002480:Cellulase / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry* / Q000378:metabolism*; D003470:Culture Media / Q000737:chemistry / Q000378:metabolism; D004736:Energy-Generating Resources; D000431:Ethanol / Q000378:metabolism*; D007220:Industrial Waste / Q000517:prevention & control; D008031:Lignin / Q000737:chemistry* / Q000378:metabolism*; D035261:Plant Components, Aerial / Q000737:chemistry / Q000382:microbiology; D003313:Zea mays / Q000737:chemistry* / Q000382:microbiology*
chemical_list: D003470:Culture Media; D007220:Industrial Waste; C036909:lignocellulose; D000431:Ethanol; D002482:Cellulose; D008031:Lignin; D002480:Cellulase