Understanding and engineering electrochemically active bacteria for sustainable biotechnology

Electrochemically active bacteria (EAB) receive considerable attention in sustainable biotechnology, since they are essential components in microbial fuel cells (MFCs) that are able to generate electricity from biomass wastes. EAB are also expected to be applied to the production of valued chemicals...

Full description

Saved in:
Bibliographic Details
Published in:Bioresources and bioprocessing 2019-03, Vol.6 (1), p.1-15, Article 10
Main Authors: Hirose, Atsumi, Kasai, Takuya, Koga, Ryota, Suzuki, Yusuke, Kouzuma, Atsushi, Watanabe, Kazuya
Format: Article
Language:English
Subjects:
Bacteria
Biochemical Engineering
Biochemical fuel cells
Biotechnology
Chemistry
Chemistry and Materials Science
Electric syntrophy
Electrochemically active bacteria
Electrodes
Electrotroph
Energy conservation
Environmental Engineering/Biotechnology
Exoelectrogen
Genomics
Growth conditions
Industrial and Production Engineering
Microbial electrolysis cells
Microbial fuel cells
Microorganisms
Molecular modelling
Organic chemistry
Review
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:Electrochemically active bacteria (EAB) receive considerable attention in sustainable biotechnology, since they are essential components in microbial fuel cells (MFCs) that are able to generate electricity from biomass wastes. EAB are also expected to be applied to the production of valued chemicals in microbial electrosynthesis systems (MESs) with the supply of electric energy from electrodes. It is, therefore, important to deepen our understanding of EAB in terms of their physiology, genetics and genomics. Knowledge obtained in these studies will facilitate the engineering of EAB for developing more efficient biotechnology processes. In this article, we summarize current knowledge on Shewanella oneidensis MR-1, a representative EAB extensively studied in the laboratory. Studies have shown that catabolic activities of S. oneidensis MR-1 are well tuned for efficiently conserving energy under varied growth conditions, e.g., different electrode potentials, which would, however, in some cases, hamper its application to biotechnology processes. We suggest that understanding of molecular mechanisms underlying environmental sensing and catabolic regulation in EAB facilitates their biotechnological applications.
ISSN:2197-4365
2197-4365
DOI:10.1186/s40643-019-0245-9