Corn stover fractions and bioenergy: chemical composition, structure, and response to enzyme pretreatment.
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.
Akin
Danny E
DE
Russell Research Center, PO Box 5677, USDA-ARS, Athens, GA 30604, USA. deakin@qaru.ars.usda.gov
Morrison
W Herbert
WH
Rigsby
Luanne L
LL
Barton
Franklin E
FE
Himmelsbach
David S
DS
Hicks
Kevin B
KB
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*
D003470:Culture Media; D007220:Industrial Waste; C036909:lignocellulose; D000431:Ethanol; D002482:Cellulose; D008031:Lignin; D002480:Cellulase