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Title: Convenient non-invasive electrochemical techniques to monitor microbial processes: current state and perspectives

Journal Article · · Applied Microbiology and Biotechnology

Real-time electrochemical monitoring in bioprocesses is an improvement over existing systems because it is versatile and provides more information to the user than periodic measurements of cell density or metabolic activity. Real-time electrochemical monitoring provides the ability to monitor the physiological status of actively growing cells related to electron transfer activity and potential changes in the proton gradient of the cells. Voltammetric and amperometric techniques offer opportunities to monitor electron transfer reactions when electrogenic microbes are used in microbial fuel cells or bioelectrochemical synthesis. Impedance techniques provide the ability to monitor the physiological status of a wide range of microorganisms in conventional bioprocesses. Impedance techniques involve scanning a range of frequencies to define physiological activity in terms of equivalent electrical circuits, thereby enabling the use of computer modeling to evaluate specific growth parameters. Electrochemical monitoring of microbial activity has applications throughout the biotechnology industry for generating real-time data and offers the potential for automated process controls for specific bioprocesses.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Laboratory (SRNL)
Sponsoring Organization:
USDOE Office of Environmental Management (EM)
Grant/Contract Number:
Support for this work was provided by the U.S. Department of Energy to Savannah River Nuclear Solutions LLC under contract DE-AC09-08SR22470.; AC09-08SR22470
OSTI ID:
1619312
Alternate ID(s):
OSTI ID: 1561215
Report Number(s):
SRNL-STI-2019-00550; PII: 10091
Journal Information:
Applied Microbiology and Biotechnology, Journal Name: Applied Microbiology and Biotechnology Vol. 103 Journal Issue: 20; ISSN 0175-7598
Publisher:
Springer Science + Business MediaCopyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Figures / Tables (5)