Comparison of steam pretreatment of eucalyptus, aspen, and spruce wood chips and their enzymatic hydrolysis

  • L. P. Ramos
  • C. Breuil
  • J. N. Saddler
Session 1 Thermal, Chemical, and Biological processing

DOI: 10.1007/BF02920532

Cite this article as:
Ramos, L.P., Breuil, C. & Saddler, J.N. Appl Biochem Biotechnol (1992) 34: 37. doi:10.1007/BF02920532

Abstract

Enzymatic hydrolysis of SO2-impregnated, steam-explodedEucalyptus viminalis was carried out at increasing substrate concentrations and enzyme loadings. When low enzyme loadings were used, the peroxide-treated fraction derived from eucalyptus chips (SEE-WIA/ H2O2) was more readily hydrolyzed than the water-insoluble (SEE-WI) and the alkali-insoluble (SEE-WIA) fractions. The various cellulosic fractions derived from steam-explodedE. viminalis exhibited a greater susceptibility to hydrolysis than the equivalent aspen and spruce substrates, particularly at high substrate concentrations (10%, w/v).

Index Entries

Steam pretreatment lignocellulosic residues enzymatic hydrolysis Eucalyptus viminalis hardwoods/softwoods 

Copyright information

© Humana Press Inc. 1992

Authors and Affiliations

  • L. P. Ramos
    • 1
  • C. Breuil
    • 1
  • J. N. Saddler
    • 1
  1. 1.Forest Products Biotechnology, Faculty of ForestryUniversity of British ColumbiaVancouverCanada

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