It's possible that an acidic crash during butanol production could be caused by an accumulation of acids produced during ABE fermentation
<h3>What is butyric fermentation?</h3>
Butyric acid fermentation is exhibited by a number of obligately anaerobic bacteria, the majority of which are members of the genus Clostridium. These bacteria are able to oxidize sugar, and on occasion amylose and pectin, to produce pyruvate through the process of glycolysis.
Pyruvate, in turn, is oxidized to produce acetylCoA by the enzyme system known as pyruvate–ferredoxin oxidoreductase, which results in the creation of carbon dioxide and hydrogen. The synthesis of ATP is coupled with the conversion of some of the acetylCoA into acetic acid.
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