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Pink discolouration of sauerkraut is caused by

  • A.Pigmented Rhodotorula yeasts growing in the brine
  • B.Iron released from the fermentation vessel
  • C.Excess lactic acid produced late in the process
  • D.Chlorophyll breaking down in the shredded cabbage

Answer: A

Certain Rhodotorula yeasts carry red pigments and colour the kraut when they are able to grow. They are favoured by too much salt, or by salt spread unevenly, because that holds back the lactic acid bacteria that would otherwise outcompete them.

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