Electricity generation by Propionibacterium freudenreichii in a mediatorless microbial fuel cell.

Objective: To test Propionibacterium freudenreichii as a novel biocatalyst in a glycerol-oxidizing microbial fuel cell (MFC).

Results: Two strains, P. freudenreichii ssp.

Comparison of Escherichia coli and anaerobic consortia derived from compost as anodic biocatalysts in a glycerol-oxidizing microbial fuel cell.

Using glycerol from biodiesel production as a fuel in a microbial fuel cell (MFC) will generate electricity and value-added by-products from what is currently considered waste. This research screened Escherichia coli W3110 (ATCC 27325) and a mixed culture enriched from compost (AR2) as anodic biocatalysts in a mediatorless glycerol-oxidizing MFC. In an H-type MFC, the mixed culture AR2 biocatalyst produced a maximum power density of 11.