Journal
CURRENT OPINION IN BIOTECHNOLOGY
Volume 20, Issue 6, Pages 633-641Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.copbio.2009.09.006
Keywords
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Funding
- Japan Science and Technology Agency (JST)/Exploratory Research for Advanced Technology (ERATO)
- New Energy and Industrial Technology Development Organization (NEDO) of Japan
- Environmental Biotechnology Cooperative Research Centre of Australia
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Electron-shuttling compounds (electron shuttles [ESs], or redox mediators) are essential components in intracellular electron transfer, while microbes also utilize self-produced and naturally present ESs for extracellular electron transfer. These compounds assist in microbial energy metabolism by facilitating electron transfer between microbes, from electron-donating substances to microbes, and/or from microbes to electron-accepting substances. Artificially supplemented ESs can create new routes of electron flow in the microbial energy metabolism, thereby opening up new possibilities for the application of microbes to biotechnology processes. Typical examples of such processes include halogenated-organics bioremediation, azo-dye decolorization, and microbial fuel cells. Herein we suggest that ESs can be applied widely to create new microbial biotechnology processes.
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