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Hemicellulases from the thermophilic fungus Thermoascus aurantiacus - their potential application in pretreatment of animal feed

Published online by Cambridge University Press:  05 November 2021

S. Kalogiannis ,
E. Owen ,
D.E. Beever  and
M.K. Bhat
S. Kalogiannis
Affiliation:
Institute of Food Research, Earley Gate, Whiteknights Road, Reading, RG6 6BZ, UK
E. Owen
Affiliation:
Department of Agriculture, The University of Reading, Earley Gate, PO Box 236, Reading, RG6 6AT, UK
D.E. Beever
Affiliation:
Department of Agriculture, The University of Reading, Earley Gate, PO Box 236, Reading, RG6 6AT, UK
M.K. Bhat
Affiliation:
Institute of Food Research, Earley Gate, Whiteknights Road, Reading, RG6 6BZ, UK
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Extract

Cellulose and hemicellulose are major components of forages for ruminants, and their partial degradation by chemical (e.g. NaOH, NH4OH) or biological (e.g. enzymes) means prior to feeding may improve both digestibility and feed intake. To identify suitable enzymes for forage treatment, it is necessary to establish their respective pH and temperature optima as well as their stability. In this study Thermoascus aurantiacus, a thermophilic fungus associated with rotting wood and self heated hay, was investigated as a source of stable hemicellulolytic enzymes.

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Techniques
Information
Proceedings of the British Society of Animal Science , Volume 1996 , March 1996 , pp. 238
Copyright
Copyright © The British Society of Animal Science 1996

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References

Bailey, M.J., Biely, P. and Poutanen, K. 1992. Interlaboratory testing of methods for assay of xylanase activity. J.Biotechnol. 23: 257–270.10.1016/0168-1656(92)90074-JCrossRefGoogle Scholar
Kalogiannis, S., Owen, E., Beever, D.E., Bhat, K.M. 1995. Screening often strains of Thermoascus aurantiacus and characterization of a major xylanase. Proceedings of the Ninth Forum for Applied Biotechnology., 1995-1998.Google Scholar