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The fermentation that produces sauerkraut is carried out chiefly by

  • A.Bakers' yeast
  • B.Lactic acid bacteria
  • C.Acetic acid bacteria
  • D.Filamentous moulds

Answer: B

A succession of lactic acid bacteria converts the sugars of the cabbage to lactic acid, dropping the pH far enough to preserve the vegetable. Acetic acid bacteria make vinegar, moulds are spoilage organisms here, and yeast fermentation gives alcohol rather than acid.

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