Utilization of sugarcane bagasse for bioethanol production: sono-assisted acid hydrolysis approach

Bioresour Technol. 2011 Jul;102(14):7119-23. doi: 10.1016/j.biortech.2011.04.045. Epub 2011 Apr 21.

Abstract

In this study, the production of sugar monomers from sugarcane bagasse (SCB) by sono-assisted acid hydrolysis was performed. The SCB was subjected to sono-assisted alkaline pretreatment. The cellulose and hemicellulose recovery observed in the solid content was 99% and 78.95%, respectively and lignin removal observed during the pretreatment was about 75.44%. The solid content obtained was subjected to sono-assisted acid hydrolysis. Under optimized conditions, the maximum hexose and pentose yield observed was 69.06% and 81.35% of theoretical yield, respectively. The hydrolysate obtained was found to contain very less inhibitors, which improved the bioethanol production and the ethanol yield observed was 0.17 g/g of pretreated SCB.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkalies / pharmacology
  • Biofuels / analysis*
  • Catalysis / drug effects
  • Cellulose / chemistry*
  • Ethanol / chemical synthesis*
  • Fermentation / drug effects
  • Hydrolysis / drug effects
  • Polysaccharides / chemistry
  • Saccharum / chemistry*
  • Sulfuric Acids / pharmacology*
  • Time Factors
  • Ultrasonics / methods*
  • X-Ray Diffraction

Substances

  • Alkalies
  • Biofuels
  • Polysaccharides
  • Sulfuric Acids
  • Ethanol
  • hemicellulose
  • Cellulose
  • bagasse
  • sulfuric acid