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Which organism is the most economically damaging spoilage yeast of red wine?

  • A.Saccharomyces cerevisiae
  • B.Oenococcus oeni
  • C.Lactobacillus plantarum
  • D.Brettanomyces bruxellensis

Answer: D

Brettanomyces produces volatile phenols giving barnyard and medicinal off-odours, and the losses it causes in red wine are substantial. Saccharomyces is the fermenting yeast and Oenococcus performs a desirable step, while Lactobacillus is a bacterium rather than a yeast.

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