Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (327 KB)

Title: Dilute acid pretreatment of corncob for efficient sugar production

Author: Wang, G.S.; Lee, Jae-Won; Zhu, Junyong; Jeffries, Thomas W.;

Date: 2011

Source: Applied biochemistry and biotechnology. Vol. 163, no. 5 (Mar. 2011): p. 658-668.

Publication Series: Scientific Journal (JRNL)

Description: Aqueous dilute acid pretreatments of corncob were conducted using cylindrical pressure vessels in an oil bath. Pretreatments were conducted in a temperature range of 160–190 °C with acid-solution-to-solid-corncob ratio of 2. The acid concentration (v/v) in the pretreatment solution was varied from 0% to 0.7%, depending on temperature. This gives acid charge on ovendry-weight corncob of 0–2.58%. It was found that optimal pretreatment temperature is between 160 and 170 °C based on total xylose and glucose yields and thermal energy consumption in pretreatment. At 170 °C and acid charge of 2.2% on cob, total glucose yield and xylose recovery were 97% and 75%, respectively, which resulted in an overall monomeric sugar recovery of about 88%. Xylose concentration in the hydrolysate was about 12%, with xylose-to-acetic-acid ratio of 8 and to furan (furfural and hydroxymethylfurfural) of about 15.

Keywords: Corncobs, corn residues, pretreatment, biomass utilization, glucose, temperature, cellulose, biomass energy, hydrolysis, ethanol, enzymes, biotechnology, industrial applications, chemical reactions, sugars, energy consumption, furfural, acetic acid, fermentation, sulfuric acid, corn as fuel, biorefining, bioconversion, alcohol, saccharification, biomass fuel, acid hydrolysis, xylose, hydrolysates, biofuels, hydroxymethylfurfural, cellulosic ethanol, enzymatic hydrolysis, inhibitors

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Wang, G.S.; Lee, Jae-Won; Zhu, J.Y.; Jeffries, Thomas W. 2011. Dilute acid pretreatment of corncob for efficient sugar production. Applied Biochemistry and Biotechnology. 163(5): 658-668.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.