Question:

The musty potato flavour in milk and cream is due to the production of specific compound. Choose the correct option among the followings

Show Hint

Musty potato flavour: 2-methoxy-alkylpyrazine.
Phenolic flavour: cresol.
Rancid flavour: butyric acid.
  • 2-Methoxy-alkylpyrazine
  • Cresol
  • Butyric acid
  • Caproic acid
Show Solution
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The Correct Option is A

Solution and Explanation


Step 1: Understanding the Concept:
Off-flavours in milk and cream are caused by specific microbial metabolites.
Each off-flavour has a characteristic compound.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the compounds responsible for off-flavours.
Step 3: Detailed Explanation:
The musty potato flavour in milk and cream is caused by 2-methoxy-alkylpyrazine.
This compound is produced by certain microorganisms.
Cresol causes phenolic flavour.
Butyric acid causes rancid flavour.
Caproic acid causes goaty flavour.
Thus, the correct compound is 2-methoxy-alkylpyrazine.
Step 4: Final Answer:
The musty potato flavour is due to 2-methoxy-alkylpyrazine.
Hence, the correct option is (A). \bigskip
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