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Which is a spoilage organism rather than a production organism?

  • A.Brettanomyces
  • B.Saccharomyces cerevisiae used to ferment a wine must
  • C.Saccharomyces pastorianus used to ferment a lager wort
  • D.Oenococcus oeni used to carry out malolactic fermentation

Answer: A

Brettanomyces is unwanted in almost every context, giving volatile phenols and barnyard aromas, although a few traditional styles tolerate or even seek it. The other three are deliberately used organisms doing the jobs they are chosen for.

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