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South African
Wine Lab Association:

The Development of Alcoholic Fermented Beverages Utilizing Plums with the Application of Innovative Beverage Fermentation Technology

G. Williams*, J. van Wyk, C. Hansmann

The adaptation of existing technologies toward producing a white wine style alcoholic fermented
plum beverage was undertaken. The Independent Variables (ID) were yeast strains (Saccharomyces
cerevisiae VIN13 and Saccharomyces bayanus N96), with formulations containing various percentage
pulp concentrations at (40%, 50% and 60%). The Dependent Variables (DV) constituted key quality
parameters for white wines, namely methanol content, ethanol content, titratable acidity (TA), objective
colour, total soluble solids (TDS), pH and sensory profile were measured. Methanol was not detected in the
samples, ethanol content, TA, colour, TDS and pH were within the range typical for white wine. The overall
sensorial profile of the beverage samples, fruity aroma and sweet associated aroma were rated significantly
higher as the pulp concentration increased from 40% to 50% (p < 0.05). Exhibiting comparable sensory
attributes namely fruity aroma, sweet-associated aroma, yeasty aroma, sweet taste, sour taste, bitter taste,
astringency and fruity flavour, that was typically associated with white wines. The results showed that
existing technology can be adapted to produce an alcoholic fermented plum beverage of which the key
quality parameters and attributes are comparable to white wines.

Alcoholic fermented beverage, plums, fermentation, sensory profile, ethanol

Full article

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