Tag Archives: Agricultural wastes; Edible mushrooms; Pleurotus ostreatus (Jacq.) P. Kumm.; Breaking strength; Growing media

181–197 M.R. Picornell-Buendía,, A. Pardo-Giménez and J.A. de Juan-Valero
Reuse of spent mushroom substrate by modification and its qualitative parameters
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Reuse of spent mushroom substrate by modification and its qualitative parameters

M.R. Picornell-Buendía¹,*, A. Pardo-Giménez² and J.A. de Juan-Valero¹†

¹Escuela Técnica Superior de Ingenieros Agrónomos de Albacete, Castilla – La Mancha
University, Campus Universitario s/n, E02071, Albacete – Spain
²Centro de Investigación, Experimentación y Servicios del Champiñón (CIES),
C/Peñicas, s/n. Apartado 63, 16220 Quintanar del Rey – Cuenca, Spain
*Correspondence: MRaquel.Picornell@hotmail.com

Abstract:

In this study the agronomic viability of Pleurotus ostreatus (Jacq.) P. Kumm. is studied by reusing the spent substrates previously used in crops of the same mushrooms. After the physical and chemical characterization of the substrates, we have evaluated qualitative production parameters in one growing season. As base material, the experiment was arranged with wheat straw (WS) and spent Pleurotus substrate (SPS) to generate prepared substrates with the participation of the same, alone and mixed in different proportions with wheat bran (WB). Unsupplemented SPS, supplemented SPS with 600 g of WB, mixture of WS + unsupplemented SPS, and mixture of WS + supplemented SPS with 600 g of WB, are prepared substrates that have achieved acceptable crude protein content in fruit bodies at the expense losing texture, but not firmness. Also these substrates promote brightness, and yellow-blue (b*) and red-green (a*) chromaticity of the harvested mushrooms.

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