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A sustainable fungal microbial fuel cell (FMFC) for the bioremediation of acetaminophen (APAP) and its main by-product (PAP) and energy production from biomass

Author name : Anissa Somrani
Publication Date : 2019-10-07
Journal Name : Biocatalysis and Agricultural Biotechnology

Abstract

A fungal biofilm of Scedosporium dehoogii was successfully elaborated and used as a bio anode in a microbial fuel
cell device. The cathode was a carbon felt electrochemically modified by electrodeposition of a film of poly-Ni(II)
tetrasulphonated phthalocyanine (poly-NiTSPc). The elaborated biofilm, formed by electrodeposition of a suspension of Scedosporium dehoogii worked to catalyze acetaminophen (APAP) oxidation in the anode. The optimal
potential during the electrodeposition process was found to be 0.8 V vs. saturated calomel electrode (SCE) with a
thickness of 3.5 �0.2 μm. The fabricated fungal microbial fuel cell (FMFC) proved to be an efficient fuel in
acetaminophen with highly stable output performances offering a power density of 50 mW m
2
under an electromotive force of þ550 mV in physiological conditions. The biodegradation of PAP, the main APAP by-product
from bacterial biodegradation, was also studied and the optimal resistance from the usual polarization curves
was 3.000 Ohm. Finally, the biodegradation of ligno-cellulosic materials such as bagasse, rapeseed, cellulose and
lignin by Scedosporium dehoogii was successfully tested in Petri dishes. The growth of the fungus using these
biomaterials as substrates followed the order: bagasse >rapeseed >cellulose >lignin. The FMFC was tested in
the presence of natural lignin from sugarcane bagasse and complete degradation of the lignin by S. dehoogii
biofilm was achieved with a power density of 16 mW m
2
.

Keywords

Fungal microbial fuel cell S. dehoogii APAP/PAP/Biomass Lignin SEM/AFM

Publication Link

https://www.sciencedirect.com/science/article/abs/pii/S1878818119309478

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