Author(s):
Moreira, Bruno Rafael de Almeida [UNESP] ; Viana, Ronaldo da Silva [UNESP] ; Magalhães, Anderson Chagas [UNESP] ; Caraschi, José Claudio [UNESP] ; Zied, Diego Cunha [UNESP] ; Dias, Eustáquio Souza ; Rinker, Danny Lee
Date: 2020
Persistent ID: http://hdl.handle.net/11449/200994
Origin: Oasisbr
Subject(s): Biomass-to-solid fuel; Briquetting; Energy density; Oyster mushroom; Waste management; Biomass-to-solid fuel; Biomass-to-solid fuel; Briquetting; Briquetting; Energy density; Energy density; Oyster mushroom; Oyster mushroom; Waste management; Waste management
Description
Made available in DSpace on 2020-12-12T02:21:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-20
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Development and implementation of strategies targeting downstream steps to convert spent mushroom substrate into energy or bioproducts are an urgent matter. This may ensure that edible mushrooms are both sustainable to cultivate and also are able to be competitive with conventional sources of proteins. Accordingly, this study aimed at developing an integrated system to firstly produce oyster mushroom on sugarcane bagasse shaped into briquettes, then, recycle its spent material into fuel grade biosolids. To make special briquettes for production of P. ostreatus var. florida, sugarcane bagasse, corn meal, wheat bran, and calcitic limestone at the ratio of 30: 2.5: 2.5: 1 m m−1 (dry matter) were placed together in polyethylene bags, water added to 40, 60 and 80% moisture, then, pressed at 15, 30, 45, and 60 MPa using a pilot-scale hydraulic piston presser. At the end of thirty days of axenic cultivation, the spent material was dried and milled, then, reconverted into briquettes at the standard-pressure of 120 MPa. Production briquettes of 45 MPa, with 60 and 80% moisture, had the greatest productivity of mushrooms, 28.30% and 30.40%, and generated the lowest quantities of spent substrate, 46.70% and 44.80%, respectively. The relative energy density in solid biofuels from recycling the highest producers was the lowest, 2865.40 MJ kg−3 and 2573.05 MJ kg−3, respectively. In conclusion, a complete system of cultivating P. ostreatus var. florida and producing briquettes was successfully developed. This concept technically was efficiency in converting lignocellulosic residues into high-performance substrates for protein-rich food production. As well, this recycled the spent mushroom substrates into medium-quality fuel grade biosolids.
Department of Phytosanitary Rural Engineering and Soils School of Engineering São Paulo State University (Unesp) Ilha Solteira Campus
Department of Plant Production College of Agricultural and Technological Sciences São Paulo State University (Unesp) Dracena Campus
São Paulo State University (Unesp) Itapeva Campus
Department of Biology Federal University of Lavras
University of Guelph Vineland Campus, Vineland Station
Department of Phytosanitary Rural Engineering and Soils School of Engineering São Paulo State University (Unesp) Ilha Solteira Campus
Department of Plant Production College of Agricultural and Technological Sciences São Paulo State University (Unesp) Dracena Campus
São Paulo State University (Unesp) Itapeva Campus
FAPESP: 15/07772–4
FAPESP: 15/15306–3
