Saccharomyces Cerevisiae as Anodic Biocatalyst in Microbial Fuel Cell: Influence of Redox Mediator and Operative Conditions.

Microbial fuel cells (MFCs) can generate electricity by oxidizing the organic substrates in domestic or industrial wastewater, using microorganisms as biocatalysts. The wastewater streams from the food industry based on yeasts could be directly purified and contemporary produce electricity in MFCs. However, the electron transfer mechanism between yeasts and electrodes has not been positively identified. Saccharomyces cerevisiae was implemented as biocatalyst in the anaerobic anodic compartment of an MFC using glucose as carbon source and methylene blue as electron mediator.