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Employing Laccase-Producing Aspergillus sydowii NYKA 510 as a Cathodic Biocatalyst in Self-Sufficient Lighting Microbial Fuel Cell

Journal of Microbiology and Biotechnology 2019년 29권 12호 p.1861 ~ 1872
 ( Abdallah Yomna K. ) - Helwan University Faculty of Applied Arts Interior Design and Furniture Department

 ( Estevez Alberto T. ) - Universidad Internacional de Catalunya UIC Faculty of Architecture Biodigital Architecture
 ( Tantawy Diaa El Deen M. ) - Helwan University Faculty of Applied Arts Interior Design and Furniture Department
 ( Ibraheem Ahmad M. ) - Helwan University Faculty of Applied Arts Interior Design and Furniture Department
 ( Khalil Neveen M. ) - Cairo University Faculty of Science Botany and Microbiology Department

Abstract


In the present work, we isolated and identified Aspergillus sydowii NYKA 510 as the most potent laccase producer. Its medium constituents were optimized to produce the highest possible amount of laccase, which was after 7 days at 31oC and pH 5.2. Banana peel and peptone excelled in inducing laccase production at concentrations of 15.1 and 2.60 g/l, respectively. Addition of copper sulfate elevated enzyme yield to 145%. The fungus was employed in a microbial fuel cell (MFC). The best performance was obtained at 2000 Ω achieving 0.76 V, 380 mAm-2, 160 mWm-2, and 0.4 W. A project to design a self-sufficient lighting unit was implemented by employing a system of 2 sets of 4 MFCs each, connected in series, for electricity generation. A scanning electron microscopy image of A. sydowii NYKA 510 was utilized in algorithmic form generation equations for the design. The mixed patterning and patterned customized mass approach were developed by the authors and chosen for application in the design.

키워드

Aspergillus sydowii; laccase; microbial fuel cell; self-sufficient lighting design
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