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Tunable Fungal Monofilaments from Food Waste for Textile Applications
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)ORCID iD: 0000-0002-5897-5535
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre for Resource Recovery)
Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology ACECR Isfahan 83431 Iran.
Department of Engineering Sciences and Mathematics Luleå University of Technology Luleå SE‐971 87 Sweden.
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2023 (English)In: Global Challenges, E-ISSN 2056-6646Article in journal (Refereed) Epub ahead of print
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

A fungal biorefinery is presented to valorize food waste to fungal monofilaments with tunable properties for different textile applications. Rhizopus delemar is successfully grown on bread waste and the fibrous cell wall is isolated. A spinnable hydrogel is produced from cell wall by protonation of amino groups of chitosan followed by homogenization and concentration. Fungal hydrogel is wet spun to form fungal monofilaments which underwent post-treatments to tune the properties. The highest tensile strength of untreated monofilaments is 65 MPa (and 4% elongation at break). The overall highest tensile strength of 140.9 MPa, is achieved by water post-treatment. Moreover, post-treatment with 3% glycerol resulted in the highest elongation % at break, i.e., 14%. The uniformity of the monofilaments also increased after the post-treatments. The obtained monofilaments are compared with commercial fibers using Ashby's plots and potential applications are discussed. The wet spun monofilaments are located in the category of natural fibers in Ashby's plots. After water and glycerol treatments, the properties shifted toward metals and elastomers, respectively. The compatibility of the monofilaments with human skin cells is supported by a biocompatibility assay. These findings demonstrate fungal monofilaments with tunable properties fitting a wide range of sustainable textiles applications. 

Place, publisher, year, edition, pages
John Wiley & Sons, 2023.
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Engineering and Technology Industrial Biotechnology Materials Engineering
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URN: urn:nbn:se:hb:diva-30531DOI: 10.1002/gch2.202300098ISI: 001066479100001Scopus ID: 2-s2.0-85171286785OAI: oai:DiVA.org:hb-30531DiVA, id: diva2:1799080
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Vinnova, 2018–04093Available from: 2023-09-21 Created: 2023-09-21 Last updated: 2024-02-01Bibliographically approved

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Wijayarathna, E.R. Kanishka B.Mohammadkhani, GhasemFerreira, JorgeZamani, Akram

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