Delignification of Wheat Straw by Pleurotus spp. under Mushroom-Growing Conditions

Author:

Tsang Linda J.1,Reid Ian D.1,Coxworth Ewen C.1

Affiliation:

1. Saskatchewan Research Council, Saskatoon, Saskatchewan, Canada S7N 0X1, and Plant Biotechnology Institute, National Research Council of Canada, Saskatoon, Saskatchewan, Canada S7N 0W92

Abstract

Pleurotus sajor-caju, P. sapidus, P. cornucopiae , and P. ostreatus mushrooms were produced on unsupplemented wheat straw. The yield of mushrooms averaged 3.6% (dry-weight basis), with an average 18% straw weight loss. Lignin losses (average, 11%) were lower than cellulose (20%) and hemicellulose (50%) losses. The cellulase digestibility of the residual straw after mushroom harvest was generally lower than that of the original straw. It does not appear feasible to simultaneously produce Pleurotus mushrooms and a highly delignified residue from wheat straw.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference24 articles.

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2. Effect of substrate nitrogen on lignin degradation by Pleurotus ostreatus;Commanday F.;Arch. Microbiol.,1985

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4. Modified procedure to determine acidinsoluble lignin in wood and pulp;Effland M. J.;TAPPI,1977

5. Eger G. 1978. Biology and breeding of Pleurotus p. 497-519. In S. T. Chang and W. A. Hayes (ed.) The biology and cultivation of edible mushrooms. Academic Press Inc. New York.

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