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Validation of thermal composting process using olive mill solid waste for industrial scale cultivation of Agaricus bisporus |
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| Authors: | Francesca ParatiRoberto Altieri Alessandro EspositoArianna Lobianco Milva PepiLorenzo Montesi Tan Nair |
| Institution: | a Azienda Agricola Valfungo, Frazione Gricignano, 6-52037 Sansepolcro, Arezzo, Italy b Consiglio Nazionale delle Ricerche, Istituto per i Sistemi Agricoli e Forestali del Mediterraneo, Via Madonna Alta, 128-06128 Perugia, Italy c Dipartimento di Scienze Ambientali “G. Sarfatti”, Università degli Studi di Siena, Via P.A. Mattioli, 4, 53100 Siena, Italy d Centre for Plants and the Environment, University of Western Sydney, Locked Bag 1797, South Penrith DC, NSW 1797, Australia |
| Abstract: | The production of a substrate containing destoned olive mill solid waste for the cultivation of Agaricus bisporus (Lange) Imbach on an industrial scale was studied. A standard mushroom compost (C) mainly made from straw and poultry manure was compared with the experimental compost (EC) containing the same ingredients as (C) but with added olive mill solid waste (10.6% w/w). Microbial indicators such as counts of heterotrophic microbes and actinomycetes were higher in EC than in C. In addition, compost selectivity as indicated by higher mushroom yield and biological efficiency of EC was higher than that of C. Market quality of the mushrooms produced in both C and EC were comparable. These findings support our work that olive mill solid waste can be used safely in thermal composting process to produce a selective substrate for industrial-scale cultivation of A. bisporus. This study also demonstrates an environmentally sustainable system to manage solid waste from olive oil extraction processes thus overcoming environmental pollution brought about by irrational disposal of the waste on farm lands. |
| Keywords: | Validation Agaricus bisporus Industrial cultivation Olive mill solid waste Mushroom compost |
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