Question:

Which of the following statements related to modified atmosphere packaging are correct?
A. Modified Atmosphere Packaging (MAP) with CO\(_2\) concentration of 20-100% and balance N\(_2\) is widely used for packaging of varieties of cheeses
B. MAP with 100% CO\(_2\) flushed resists package collapse and maintains headspace volume.
C. Cottage cheese with 100% CO\(_2\) keeps well in terms of sensory and microbial quality.
D. MAP suppresses microbial growth such as Pseudomonas, molds and yeasts.
E. MAP of high fat and high moisture cheeses with 100% CO\(_2\) do not have an effect on the sensory properties.
Choose the correct answer from the options given below:

Show Hint

MAP: CO\(_2\) + N\(_2\) for cheese.
CO\(_2\) suppresses microbial growth but can affect sensory properties.
  • (B), (C) and (E) only
  • (A), (C) and (D) only
  • (A) and (D) only
  • (B) and (D) only
Show Solution
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The Correct Option is C

Solution and Explanation

Step 1: Understanding the Concept:
Modified Atmosphere Packaging (MAP) is used to extend shelf life.
CO\(_2\) concentration and gas composition are important.

Step 2: Key Formula or Approach:

No specific formula.
Need to know the principles of MAP.

Step 3: Detailed Explanation:

A. MAP with 20-100% CO\(_2\) and N\(_2\) for cheese - correct.
B. 100% CO\(_2\) resists package collapse - incorrect (CO\(_2\) is absorbed, causing collapse).
C. Cottage cheese with 100% CO\(_2\) keeps well - incorrect (affects quality).
D. MAP suppresses microbial growth - correct.
E. 100% CO\(_2\) on high fat/moisture cheeses has no effect - incorrect (affects sensory properties).
Thus, A and D are correct.

Step 4: Final Answer:

The correct statements are (A) and (D).
Hence, the correct option is (C).
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