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Cultivation of Pleurotus ostreatus mushroom on substrates made of cellulose fibre rejects: product quality and spent substrate fuel properties

Grimm, Alejandro and Xiong, Shaojun and Eilertsen, Lill and Huang, Renyuan and Atterhem, Lars and Chen, Feng (2021). Cultivation of Pleurotus ostreatus mushroom on substrates made of cellulose fibre rejects: product quality and spent substrate fuel properties. Waste and Biomass Valorization. 12 , 4331-4340
[Research article]

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Abstract

This paper explores an alternative valorisation method for high-moisture content waste streams from the pulp and paper industry. Cellulose fibre rejects from industrial-scale recycling/pulping of waste paper was used as an ingredient in substrates for cultivation of Pleurotus ostreatus, commonly known as oyster mushroom. Three substrates with 40, 60, and 80 wt% fibre rejects were tested, and a conventional substrate formula based on birch (Betula ssp.) sawdust was used for comparison. The spent mushroom substrate (SMS) fuel characteristics were assessed through ashing procedures. Mycelium growth was faster on substrates based on fibre rejects. The average biological efficiencies of the first flush of fruit bodies were between 29 and 36% compared to 42% for birch sawdust substrates. The fruit bodies had good nutritional values, i.e., crude protein (22-25 wt% d.b.), crude fat (3-3.5 wt% d.b.), crude fibre (8-10 wt% d.b.), and carbohydrates (57-62 wt% d.b.). The concentrations of heavy metals, 5-10 mu g/kg Pb, 19-28 mu g/kg Cd, 5-6 mu g/kg Hg, and 26-53 mu g/kg As were well below the limit values for food products set in EU regulations. The SMS could be used as fuel for direct combustion or co-combusted with other biomasses.

Authors/Creators:Grimm, Alejandro and Xiong, Shaojun and Eilertsen, Lill and Huang, Renyuan and Atterhem, Lars and Chen, Feng
Title:Cultivation of Pleurotus ostreatus mushroom on substrates made of cellulose fibre rejects: product quality and spent substrate fuel properties
Series Name/Journal:Waste and Biomass Valorization
Year of publishing :2021
Volume:12
Page range:4331-4340
Number of Pages:10
ISSN:1877-2641
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 209 Industrial Biotechnology > Bioenergy
Keywords:Edible fungus, Nutritional values, Heavy metals, Fuel characterization, Circular economy
URN:NBN:urn:nbn:se:slu:epsilon-p-109208
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109208
Additional ID:
Type of IDID
DOI10.1007/s12649-020-01311-y
Web of Science (WoS)000599035600001
ID Code:25989
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology
(S) > Dept. of Forest Genetics and Plant Physiology
Deposited By: SLUpub Connector
Deposited On:29 Oct 2021 13:25
Metadata Last Modified:29 Oct 2021 13:31

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