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Acetic Acid Bacteria
Acetic Acid Bacteria. Single-celled, short, rod-shaped microorganisms (q.v.) belonging to the genus Acetobacter which, through their metabolic processes, convert ethanol (q.v.) into acetic acid (q.v.) and are used commercially for the production of vinegar (q.v.) from cider or wine, and of other acetic acid-containing products from alcohol (q.v.).