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pubblicazioni - Presentazione

Anodic and cathodic microbial communities in single chamber microbial fuel cells

pubblicazioni - Presentazione

Anodic and cathodic microbial communities in single chamber microbial fuel cells

Microbial fuel cells (MFCs) are a new technology for energy production from biomass. Nowadays little information is present in literature about the structure of the microbial communities operating in MFCs, particularly in biocathodes. The aim of this work was the characterization of the microbial communities operating in a membraneless Single Chamber Microbial Fuel Cells, to gain more insight into the extracellular electron transfer (EET) mechanisms.

Microbial fuel cells (MFCs) are a new technology for energy production from biomass. Nowadays little information is present in literature about the structure of the microbial communities operating in MFCs, particularly in biocathodes. The aim of this work was the characterization of the microbial communities operating in a membraneless Single Chamber Microbial Fuel Cells, to gain more insight into the extracellular electron transfer (EET) mechanisms. Taxonomic characterization of the microbial community was carried out by DGGE fingerprinting and by Next-Generation Sequencing (NGS) of 16S rRNA gene. DGGE analyses showed that the anodic microbial populations differed in relation to the material and the geometry of the anode. Moreover the sequence of the most intense bands on the cathodic biofilms revealed the interesting presence of purple non-sulphur bacteria (PNS). NGS revealed that microorganisms belonging to Geovibrio genus dominated the anodic community. This population has never been detected in MFCs so far.

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