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Lactobacillus plantarum is favoured as a starter for cucumber fermentation partly because it

  • A.Produces large volumes of carbon dioxide extremely quickly
  • B.Grows only at temperatures close to the boiling point of water
  • C.Requires the covering brine to be free of salt altogether
  • D.Does not decarboxylate malic acid and so does not cause bloaters

Answer: D

Malic acid in the cucumber can be decarboxylated to carbon dioxide, and strains that cannot do this generate far less gas, so the risk of bloaters falls. Being homofermentative it also produces little gas from sugar, which helps for the same reason.

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