GENERAL MICROBIOLOGY - T.P. Pyrog - 2004

14. TYPES OF FERMENTATION

14.7. HOMOACETATE FERMENTATION. СО2 AS A HYDROGEN ACCEPTOR

Certain clostridia (C. thermoaceticum, C. formicoaceticum, C. cylindrosporum) are capable of transferring hydrogen, released from the substrate during initial oxidation reactions, exclusively to СО2, thereby producing acetate:

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Glucose is oxidized via The Glycolytic Pathway to Pyruvate. Pyruvate is cleaved by pyruvate:ferredoxin oxidoreductase into acetyl-CoA, СО2, and reduced ferredoxin. Acetate and ATP are formed from acetyl-CoA via acetyl phosphate. СО2 acts as the hydrogen acceptor, which also results in The formation of acetate.



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