Machine-translated by Google. Questions are authored in English.
Top

Discussion

Zygosaccharomyces is a particular nuisance in sweet wines because it

  • A.Requires abundant oxygen to grow at all
  • B.Is completely destroyed by sulphur dioxide
  • C.Produces acetic acid rather than carbon dioxide
  • D.Tolerates high sugar and can referment the wine

Answer: D

Its osmotolerance lets it grow where the sugar concentration would stop most organisms, and its resistance to sulphur dioxide makes it hard to control, so a sweet wine can referment in the bottle. Sterile filtration is the usual defence.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.