Abstract
Twenty-eight strains of <i>Leuconostoc, Lactobacillus</i>, and <i>Pediococcus</i> species were grown in media containing sorbate. All 19 of the leuconostocs produced sorbic alcohol, the precursor of the compound responsible for the so-called geranium odor, while none of the other types did so. Although no sorbic aldehyde was detected, it was postulated that the strains capable of degrading sorbic acid possessed an aldehyde dehydrogenase that the others lacked. However, the ability to reduce sorbic aldehyde was not the deciding reaction. Results indicated that this latter reaction was carried out by all of the strains of lactic acid bacteria tested as well as by commercial alcohol dehydrogenase from yeast.
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