Synergistic effect of mixed fungal pretreatment on thermogravimetric characteristics of rice straw

The thermogravimetric properties and chemical characterization of rice straw (RS) pretreated by mixed culture of white-rot fungi Phanerochaete chrysosporium (P. chrysosporium) and brown-rot fungi Gloeophyllum trabeum (G. trabeum) were investigated. The mixed fungal pretreatment showed a synergistic...

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Bibliographic Details
Published in:Bioresources 2021-05, Vol.16 (2), p.3978-3990
Main Authors: Li, Meng, Wang, Zhinan, Sun, Jin, Chen, Wanjuan, Hu, Xianfeng, Gao, Zhenzhong
Format: Article
Language:English
Subjects:
Acids
Biodiesel fuels
Biofuels
Biomass energy
Brown rot
Cellulose
Chemical composition
Energy efficiency
Environmental impact
Enzymes
Fourier transforms
Fungi
Infrared analysis
Infrared spectroscopy
Lignin
Lignocellulose
Mixed culture
Pretreatment
Pyrolysis
Reagents
Rice
Rice straw
Scanning electron microscopy
Spectrum analysis
Straw
Synergistic effect
Thermogravimetric analysis
White rot
White rot fungi
X-ray diffraction
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Summary:The thermogravimetric properties and chemical characterization of rice straw (RS) pretreated by mixed culture of white-rot fungi Phanerochaete chrysosporium (P. chrysosporium) and brown-rot fungi Gloeophyllum trabeum (G. trabeum) were investigated. The mixed fungal pretreatment showed a synergistic effect, which resulted in an energy-efficient pyrolysis of pretreated rice straw. The differences in thermochemical conversion of rice straw before and after fungal pretreatment were investigated using thermogravimetric analysis and the Flynn–Wall–Ozawa (FWO) method. Furthermore, the pretreated samples were also analyzed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) to illuminate the changes in chemical composition and pyrolysis behavior. Compared to single fungal pretreatment, the mixed fungal pretreatment worked better and exhibited great potential in biomass pyrolysis.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.16.2.3978-3990