Abstract
The selective action of the polypeptide Nisin on lactic acid bacteria was investigated during the alcoholic fermentation. In mixed cultures of lactic acid bacteria and wine yeast in different media, the bacteria were killed by Nisin, whereas the yeast fermentation was not affected. Nisin-sensitive lactic acid bacteria did not grow in the presence of Nisin. In grape must, even the rather resistant L. casei was inhibited by high concentrations of Nisin. In pilot scale experiments with fresh musts from several grape varieties, no difference in the composition or the taste of the wines was detected when Nisin had been added to the grape musts prior to fermentation.
- Received March 1989.
- Copyright 1990 by the American Society for Enology and Viticulture
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