Abstract
Bacteriophages specific for Leuconostoc oenos were isolated from four red wines undergoing malolactic fermentation in one winery. Bacteriophages were not found in samples of 16 other wines. The morphology of the phages was examined by electron microscopy. The phages did not lyse all strains of L. oenos, and susceptibility correlated to some extent with the colony morphology of the strain. Phage survived in wines at pH values greater than 3.5 but was inactivated in wines of lower pH and by the addition of sulfur dioxide or bentonite. Phage did not affect the growth of a sensitive strain of L. oenos in filter-sterilized wine.
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