Abstract
The influence of species of Acetobacter and Gluconobacter upon growth of the wine yeasts Saccharomyces cerevisiae, Kloeckera apiculata and Candida stellata was examined during mixed culture in grape juice. Acetobacter pasteurianus, A. aceti and Gluconobacter oxydans grew in conjunction with yeasts during juice fermentation. As determined by viable counts, yeast growth was only slightly impaired by the presence of bacteria. However, as judged by the concentrations of glucose, fructose, ethanol, glycerol, acetaldehyde, ethyl acetate, iso‐amyl alcohol and organic acids in the fermented juice, acetic acid bacteria significantly influenced the alcoholic fermentation by yeasts.
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