Applied Biochemistry and Biotechnology

, Volume 113, Issue 1, pp 71–93

Fungal upgrading of wheat straw for straw-thermoplastics production

  • Tracy P. Houghton
  • David N. Thompson
  • J. Richard Hess
  • Jeffrey A. Lacey
  • Michael P. Wolcott
  • Anke Schirp
  • Karl Englund
  • David Dostal
  • Frank Loge
Article

DOI: 10.1385/ABAB:113:1-3:071

Cite this article as:
Houghton, T.P., Thompson, D.N., Hess, J.R. et al. Appl Biochem Biotechnol (2004) 113: 71. doi:10.1385/ABAB:113:1-3:071

Abstract

Combining biologic pretreatment with storage is an innovative approach for improving feedstock characteristics and cost, but the magnitude of responses of such systems to upsets is unknown. Unsterile wheat straw stems were upgraded for 12 wk with Pleurotus ostreatus at constant temperature to estimate the variation in final compositions with variations in initial moisture and inoculum. Degradation rates and conversions increased with both moisture and inoculum. A regression analysis indicated that system performance was quite stable with respect to inoculum and moisture content after 6 wk of treatment. Scale-up by 150× indicated that system stability and final straw composition are sensitive to inoculum source, history, and inoculation method. Comparative testing of straw-thermoplastic composites produced from upgraded stems is under way.

Index Entries

Fungal upgradingengineered storagebiological preprocessingPleurotus ostreatusstraw composite

Copyright information

© Humana Press Inc. 2004

Authors and Affiliations

  • Tracy P. Houghton
    • 1
  • David N. Thompson
    • 1
  • J. Richard Hess
    • 1
  • Jeffrey A. Lacey
    • 1
  • Michael P. Wolcott
    • 2
  • Anke Schirp
    • 2
  • Karl Englund
    • 2
  • David Dostal
    • 2
  • Frank Loge
    • 2
  1. 1.Idaho National Engineering and Environmental LaboratoryIdaho Falls
  2. 2.Washington State UniversityPullman