The biologically mediated water–gas shift reaction: structure, function and biosynthesis of monofunctional [NiFe]-carbon monoxide dehydrogenases

Among the possible renewable energies sources, biomass gasification has been considered one promising alternative to meet the daily growing energy demand. The outcome of this process is a synthetic gas (syngas) mainly composed of carbon monoxide and hydrogen. Syngas can be upgraded by a group of ana...

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Bibliographic Details
Published in:Sustainable energy & fuels 2018, Vol.2 (8), p.1653-1670
Main Authors: Alfano, Marila, Cavazza, Christine
Format: Article
Language:English
Subjects:
Biosynthesis
Biotechnology
Carbon dioxide
Carbon monoxide
Carbon monoxide dehydrogenase
Energy demand
Gasification
Hydrogenase
Intermetallic compounds
Iron compounds
Life Sciences
Nickel compounds
Shift reaction
Structure-function relationships
Synthesis gas
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Summary:Among the possible renewable energies sources, biomass gasification has been considered one promising alternative to meet the daily growing energy demand. The outcome of this process is a synthetic gas (syngas) mainly composed of carbon monoxide and hydrogen. Syngas can be upgraded by a group of anaerobic micro-organisms, thanks to the biologically mediated water–gas shift (WGS) reaction. In this process, the conversion of CO and H 2 O into CO 2 and H 2 is catalyzed by two enzymes: carbon monoxide dehydrogenase (CODH) and hydrogenase. In order to efficiently use micro-organisms as a cost effective and environmentally friendly technology, it is fundamental to deeply understand how this process occurs. In this review paper, an overview on the possible biotechnological uses of the WGS reaction is presented, focusing mainly on the fundamental characterization of the CODH enzyme.
ISSN:2398-4902
2398-4902
DOI:10.1039/C8SE00085A