Question

Identify the gas composition (in percent) suitable for packaging cured meat under MAP conditions.

• A. O\(_2\) = 0; CO\(_2\) = 50; N\(_2\) = 50
• B. O\(_2\) = 50; CO\(_2\) = 0; N\(_2\) = 50
• C. O\(_2\) = 0; CO\(_2\) = 0; N\(_2\) = 100
• D. O\(_2\) = 50; CO\(_2\) = 50; N\(_2\) = 0

Hint:

In MAP for cured meat, CO\(_2\) inhibits microbial growth, while the absence of O\(_2\) prevents oxidation. Nitrogen is used to maintain the package's structural integrity.

Answer 1

The Correct Option is A

Modified Atmosphere Packaging (MAP) is commonly used for preserving cured meat by altering the composition of gases inside the packaging to extend shelf life and maintain quality. A typical gas composition suitable for packaging cured meat includes:
- \(\mathbf{O_2 = 0}\): Oxygen is excluded as it can promote oxidation and spoilage of the meat.
- \(\mathbf{CO_2 = 50}\): Carbon dioxide is used because it inhibits microbial growth, particularly the growth of spoilage bacteria and molds.
- \(\mathbf{N_2 = 50}\): Nitrogen acts as an inert gas to fill the package and maintain the integrity of the packaging without reacting with the contents.
Thus, the correct composition for cured meat packaging under MAP conditions is (A) O\(_2 = 0\); CO\(_2 = 50\); N\(_2 = 50\). Thus, the correct answer is (A) O\(_2 = 0\); CO\(_2 = 50\); N\(_2 = 50\).