- A chemical change induced in a complex organic compound by the action of an enzyme, whereby the substance is split into simpler compounds.
- In bacteriology, the anaerobic dissimilation of substrates with the production of energy and reduced compounds; the mechanism of fermentation does not involve a respiratory chain or cytochrome, hence oxygen is not the final electron acceptor as it is in oxidation.
[L. fermento, pp. -atus, to ferment, from L. fermentum, yeast]
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Examples: glitazone, GI cocktail, etc.