Title

Optimizing Edible Fungal Growth and Biodegradation of Inedible Crop Residues Using Various Cropping Methods

Abstract

Long-term manned space flights to Mars require the development of an advanced life support (ALS) ecosystem including efficient food crop production, processing and recycling waste products thereof. Using edible white rot fungi (EWRF) to achieve effective biomass transformation in ALS requires optimal and rapid biodegradative activity on lignocellulosic wastes. We investigated the mycelial growth of Lentinula edodes and Pleurotus ostreatus on processed residues of various crops under various cropping patterns. In single cropping, mycelial growth and fruiting in all strains were significantly repressed on sweet potato and basil. However, growth of the strains was improved when sweet potato and basil residues were paired with rice or wheat straw. Oyster mushroom (Pleurotus) strains were better than shiitake (L. edodes) strains under single, paired, and mixed cropping patterns. Mixed cropping further eliminated the inherent inhibitory effect of sweet potato, basil, or lettuce on fungal growth. Co-cropping fungal species had a synergistic effect on rate of fungal growth, substrate colonization, and fruiting. Use of efficient cropping methods may enhance fungal growth, fruiting, biodegradation of crop residues, and efficiency of biomass recycling.

Keywords

Biodegradation, Cropping pattern, Edible white-rot fungi, Lignocellulose

Date of this Version

December 2007

Identifier

ALS-NSCORT:p66

Publisher Identifier:

Bioresource Technology (in press). doi:10.1016/j.biortech.2007.10.061

Publisher

Amsterdam, Elsevier Scientific Pub. Co.

ALS NSCORT Project Number

Project 12 - Fungi for Crop Waste Degradation/Edible Mushroom Production

Project Lead

Caula A. Beyl

Language

English

ALS NSCORT Series

Published Materials

Administrative Contact

Dave Kotterman, dkotter@purdue.edu

Rights

Copyright 2006 Elsevier B.V. All rights reserved. For more information please visit the author's rights section of the publisher's website at: http://www.elsevier.com/wps/find/authorsview.authors/authorsrights or the publisher's home page at: http://www.elsevier.com

Access

This article is not available through e-pubs. Current Purdue University Faculty, Staff and Students may access the full-text, electronic version of the article at: http://dx.doi.org/10.1016/j.biortech.2007.10.061

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