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Ropy or slimy brine in a cucumber fermentation is caused by

  • A.Pectin dissolving out of the skin of the fruit
  • B.Excess lactic acid combining with the added salt
  • C.Dextran formed from sucrose by Leuconostoc species
  • D.Calcium salts crystallising out of the covering brine

Answer: C

Leuconostoc converts sucrose into dextran, a long-chain polysaccharide that makes the brine pour like syrup. It is usually a passing stage, since other lactic acid bacteria consume the dextran as fermentation continues.

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