Novel method for screening microbes for application in microbial fuel cell

The ability to produce and to transport exo-electrons by microbes either to external acceptors or to electrodes are reported in our study. All investigated microorganisms (exception of Lactobacillus plantarum) exhibited strong iron-reducing capabilities in the absence of mediator meaning production...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 2015-03, Vol.179, p.123-127
Main Authors: Szöllősi, Attila, Rezessy-Szabó, Judit M, Hoschke, Ágoston, Nguyen, Quang D
Format: Article
Language:English
Subjects:
Absorbance
Bacteria
Bacteria - drug effects
Bacteria - metabolism
Biochemical fuel cells
Bioelectric Energy Sources - microbiology
Colony Count, Microbial
Electricity
Electrochemistry - methods
Electrodes
Escherichia coli
Iron - pharmacology
Lactobacillus plantarum
Linear Models
Mathematical analysis
Microorganisms
Oxidation-Reduction - drug effects
Saccharomyces cerevisiae
Saccharomyces cerevisiae - drug effects
Saccharomyces cerevisiae - growth & development
Saccharomyces cerevisiae - metabolism
Screening
Secretions
Yeast
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The ability to produce and to transport exo-electrons by microbes either to external acceptors or to electrodes are reported in our study. All investigated microorganisms (exception of Lactobacillus plantarum) exhibited strong iron-reducing capabilities in the absence of mediator meaning production and secretion of exo-electrons to the growth medium. L.plantarum, Saccharomyces cerevisiae and Escherichia coli need an electron shuttle molecule to reduce Fe(3+) ion. Significant correlation was observed between growth and iron-reducing capacity, as well as between initial cell counts and iron-reducing capacity. Changes of bio-current generated in MFC and iron-reduction were experimentally monitored, and a mathematical model was established by regression analysis. Based on these results, a novel and rapid screening method was developed for the selection of microorganisms for potential application in MFC. The method is based on the measurement of absorbance of bacterial and yeast cultures at 460 nm, providing a robust and high sample throughput approach.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2014.12.004