Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi

Abstract Mycelium fungal species exhibit fire retardant characteristics. The influence of the growth media on the fungal growth rates, biochemical composition, and microstructural characteristics and their relationship to thermal properties is poorly understood. In this paper, we demonstrate that mo...

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Main Authors: Nattanan Chulikavit, Tien Huynh, Chaitali Dekiwadia, Akbar Khatibi, Adrian Mouritz, Everson Kandare
Format: Article
Language:English
Published: Nature Portfolio 2022-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-19458-0
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author Nattanan Chulikavit
Tien Huynh
Chaitali Dekiwadia
Akbar Khatibi
Adrian Mouritz
Everson Kandare
author_facet Nattanan Chulikavit
Tien Huynh
Chaitali Dekiwadia
Akbar Khatibi
Adrian Mouritz
Everson Kandare
author_sort Nattanan Chulikavit
collection DOAJ
description Abstract Mycelium fungal species exhibit fire retardant characteristics. The influence of the growth media on the fungal growth rates, biochemical composition, and microstructural characteristics and their relationship to thermal properties is poorly understood. In this paper, we demonstrate that molasses can support the growth of non-pathogenic Basidiomycota phylum fungal species producing bio-derived materials with potential fire retardation characteristics. Scanning electron microscopy and Fourier transform infrared (FTIR) spectrometry were used to interrogate the microstructural and biochemical properties of the molasses-grown mycelia species. Thermal decomposition of molasses-fed mycelia was evaluated via thermogravimetric analysis interfaced with FTIR for real-time evolved gas analysis. The morphological and microstructural characteristics of the residual char post-thermal exposure were also evaluated. The material characterization enabled the establishment of a relationship between the microstructural, biochemical properties, and thermal properties of molasses-fed mycelia. This paper presents a comprehensive exploration of the mechanisms governing the thermal degradation of three mycelial species grown in molasses. These research findings advance the knowledge of critical parameters controlling fungal growth rates and yields as well as how the microstructural and biochemical properties influence the thermal response of mycelia.
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spelling doaj.art-c022912fb36d4a098b52341e72af5bb22022-12-22T04:24:52ZengNature PortfolioScientific Reports2045-23222022-09-0112111410.1038/s41598-022-19458-0Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungiNattanan Chulikavit0Tien Huynh1Chaitali Dekiwadia2Akbar Khatibi3Adrian Mouritz4Everson Kandare5Aerospace Engineering and Aviation, School of Engineering, RMIT UniversityBiotechnology and Food Sciences, School of Science, RMIT UniversityRMIT Microscopy and Microanalysis Facility, RMIT UniversityAerospace Engineering and Aviation, School of Engineering, RMIT UniversityAerospace Engineering and Aviation, School of Engineering, RMIT UniversityAerospace Engineering and Aviation, School of Engineering, RMIT UniversityAbstract Mycelium fungal species exhibit fire retardant characteristics. The influence of the growth media on the fungal growth rates, biochemical composition, and microstructural characteristics and their relationship to thermal properties is poorly understood. In this paper, we demonstrate that molasses can support the growth of non-pathogenic Basidiomycota phylum fungal species producing bio-derived materials with potential fire retardation characteristics. Scanning electron microscopy and Fourier transform infrared (FTIR) spectrometry were used to interrogate the microstructural and biochemical properties of the molasses-grown mycelia species. Thermal decomposition of molasses-fed mycelia was evaluated via thermogravimetric analysis interfaced with FTIR for real-time evolved gas analysis. The morphological and microstructural characteristics of the residual char post-thermal exposure were also evaluated. The material characterization enabled the establishment of a relationship between the microstructural, biochemical properties, and thermal properties of molasses-fed mycelia. This paper presents a comprehensive exploration of the mechanisms governing the thermal degradation of three mycelial species grown in molasses. These research findings advance the knowledge of critical parameters controlling fungal growth rates and yields as well as how the microstructural and biochemical properties influence the thermal response of mycelia.https://doi.org/10.1038/s41598-022-19458-0
spellingShingle Nattanan Chulikavit
Tien Huynh
Chaitali Dekiwadia
Akbar Khatibi
Adrian Mouritz
Everson Kandare
Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
Scientific Reports
title Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
title_full Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
title_fullStr Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
title_full_unstemmed Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
title_short Influence of growth rates, microstructural properties and biochemical composition on the thermal stability of mycelia fungi
title_sort influence of growth rates microstructural properties and biochemical composition on the thermal stability of mycelia fungi
url https://doi.org/10.1038/s41598-022-19458-0
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