Applied Biochemistry and Biotechnology

, Volume 70, Issue 1, pp 441–462

Ethanol production from AFEX-treated forages and agricultural residues

Authors

  • Khaled Belkacemi
    • Department of Food Science and NutritionAgri-Food Engineering University Laval
    • Department of Food Science and NutritionAgri-Food Engineering University Laval
  • Damien de Halleux
    • Department of SoilAgri-Food Engineering University Laval
  • Philippe Savoie
    • Department of SoilAgri-Food Engineering University Laval
    • Agriculture and Agri-Food Canada
Session 3: Bioprocessing Research

DOI: 10.1007/BF02920159

Cite this article as:
Belkacemi, K., Turcotte, G., Halleux, D.d. et al. Appl Biochem Biotechnol (1998) 70: 441. doi:10.1007/BF02920159

Abstract

Lignocellulosic materials derived from forages, namely timothy grass, alfalfa, reed canary grass, and agricultural residues, such as corn stalks and barley straw, were pretreated using ammonia fiber explosion (AFEX) process. The pretreated materials were directly saccharified by cellulolytic enzymes. Sixty to 80% of theoretical yield of sugars were obtained from the pretreated biomasses. Subsequent ethanolic fermentation of the hydrolysates byPachysolen tannophilus ATCC 32691 resulted in 40-60% of theoretical yield after 24 h, based on the sugars present in the hydrolysates. The uptake of sugars was not complete, indicating a possible inhibitory effect onP. tannophilus during the fermentation of these substrates.

Index Entries

Foragesagricultural residuesAFEXenzymatic hydrolysisethanolic fermentationbiofuel

Copyright information

© Humana Press Inc. 1998