Cellulase Accessibility of Dilute-Acid Pretreated Corn Stover

Conference · Sat Jan 01 00:00:00 EST 2005

OSTI ID:945961

Jeoh, T; Johnson, D K; Adney, W S; Himmel, M E

The conclusions of this presentation are: (1) The dilute-acid pretreatment reduces xylan content in corn stover. This reduction in xylan content appears to render the substrate less recalcitrant. Below {approx}8%, xylan content is no longer the dominant factor in biomass recalcitrance. (2) Decreasing xylan content of corn stover also created more binding sites for Cel7A, but no strong correlation with actual xylan content. (3) We found no correlation between bound Cel7A concentration and lignin content. Maybe lignin is blocking the way for Cel7A? The contribution of lignin to biomass recalcitrance requires further investigation.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC36-99-GO10337
• OSTI ID: 945961
• Resource Relation: Conference: American Chemical Society. Abstracts of Papers of the 230th ACS National Meeting, 28 August - 1 September 2005, Washington, DC; Related Information: (Abstract FUEL-122)
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
59 BASIC BIOLOGICAL SCIENCES
AGRICULTURAL WASTES
BIOMASS
CELLULASE
LIGNIN
MAIZE
SUBSTRATES
XYLANS
Alternative Fuels