Innovative chitin-glucan based material obtained from mycelium of wood decay fungal strains.

Autor:	Vadivel D; Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy., Cartabia M; Department of Earth and Environmental Sciences (DSTA), University of Pavia, Via S. Epifanio 14, 27100, Pavia, Italy.; MOGU S.r.l., Via S. Francesco d'Assisi 62, 21020, Inarzo, VA, Italy., Scalet G; Dep. of Civil Engineering and Architecture (DICAr), University of Pavia, Via Ferrata 3, 27100, Pavia, Italy., Buratti S; Department of Earth and Environmental Sciences (DSTA), University of Pavia, Via S. Epifanio 14, 27100, Pavia, Italy., Di Landro L; Department of Aerospace Science and Technology (DAER), Politecnico di Milano, Via La Masa 34, 20156, Milano, Italy., Benedetti A; Department of Aerospace Science and Technology (DAER), Politecnico di Milano, Via La Masa 34, 20156, Milano, Italy., Auricchio F; Dep. of Civil Engineering and Architecture (DICAr), University of Pavia, Via Ferrata 3, 27100, Pavia, Italy., Babbini S; MOGU S.r.l., Via S. Francesco d'Assisi 62, 21020, Inarzo, VA, Italy., Savino E; Department of Earth and Environmental Sciences (DSTA), University of Pavia, Via S. Epifanio 14, 27100, Pavia, Italy., Dondi D; Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Mar 22; Vol. 10 (7), pp. e28709. Date of Electronic Publication: 2024 Mar 22 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e28709
Abstrakt:	Fungi are an alternative source to animal-based chitin. In fungi, chitin fibrils are strongly interconnected and bound with glucans that justify the unique matrix. The present study aimed to extract chitin and glucans from the mycelium of several wood decay fungal strains in order to obtain flexible materials and to check correlations between chitin content and the mechanical properties of these materials. Five strains were chosen in consideration of their different cell wall chemical composition (high content of α-glucans, β-glucans or chitin) to evaluate how these differences could influence the mechanical and chemical characteristics of the material. The fungal strains were cultivated in liquid-submerged dynamic fermentation (both flasks and bioreactor). Chitin and glucans were crosslinked with acetic acid and plasticized with glycerol to obtain flexible sheets. Abortiporus biennis , Fomitopsis iberica and Stereum hirsutum strains were found to adapt to produce material with adequate flexibility. The obtained materials were characterized by Thermogravimetric analysis (TGA) for the understanding of the material composition. The material obtained from each species was mechanically tested in terms of tear strength, elongation at break, and Young's modulus. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors. Published by Elsevier Ltd.)
Databáze:	MEDLINE
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