Current status of carbon monoxide dehydrogenases (CODH) and their potential for electrochemical applications

Anthropogenic carbon dioxide (CO 2 ) levels are rising to alarming concentrations in earth’s atmosphere, causing adverse effects and global climate changes. In the last century, innovative research on CO 2 reduction using chemical, photochemical, electrochemical and enzymatic approaches has been add...

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Bibliographic Details
Published in:Bioresources and bioprocessing 2023-11, Vol.10 (1), p.84-84, Article 84
Main Authors: Bährle, Rebecca, Böhnke, Stefanie, Englhard, Jonas, Bachmann, Julien, Perner, Mirjam
Format: Article
Language:English
Subjects:
Biocatalysts
Biochemical Engineering
Carbon dioxide
Carbon dioxide fixation
Carbon monoxide
Carbon monoxide dehydrogenase (CODH)
Chemical reactions
Chemistry
Chemistry and Materials Science
CO2 fixing microorganisms
CO2 reduction
Dehydrogenases
Electrocatalysis
Electrochemical cells
Environmental Engineering/Biotechnology
Enzymes
Industrial and Production Engineering
Protons
Redox reactions
Review
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Summary:Anthropogenic carbon dioxide (CO 2 ) levels are rising to alarming concentrations in earth’s atmosphere, causing adverse effects and global climate changes. In the last century, innovative research on CO 2 reduction using chemical, photochemical, electrochemical and enzymatic approaches has been addressed. In particular, natural CO 2 conversion serves as a model for many processes and extensive studies on microbes and enzymes regarding redox reactions involving CO 2 have already been conducted. In this review we focus on the enzymatic conversion of CO 2 to carbon monoxide (CO) as the chemical conversion downstream of CO production render CO particularly attractive as a key intermediate. We briefly discuss the different currently known natural autotrophic CO 2 fixation pathways, focusing on the reversible reaction of CO 2 , two electrons and protons to CO and water, catalyzed by carbon monoxide dehydrogenases (CODHs). We then move on to classify the different type of CODHs, involved catalyzed chemical reactions and coupled metabolisms. Finally, we discuss applications of CODH enzymes in photochemical and electrochemical cells to harness CO 2 from the environment transforming it into commodity chemicals.
ISSN:2197-4365
2197-4365
DOI:10.1186/s40643-023-00705-9