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