Question

Which is the main index organism to achieve complete safety of milk in pasteurization of milk?

• A. \(\textit{Mycobacterium tuberculosis}\)
• B. \(\textit{Staphylococcus Aureus}\)
• C. \(\textit{E. Coli}\)
• D. \(\textit{Listeria Monocytogenes}\)

Hint:

Pasteurization primarily aims to kill \textit{Mycobacterium tuberculosis}, ensuring milk is safe for consumption.

Answer 1

The Correct Option is A

Step 1: Understanding pasteurization. 
- Pasteurization is a heat treatment that kills harmful microorganisms in milk. The main target organism is \(\textit{Mycobacterium tuberculosis}\), as it is resistant to heat and can be present in unpasteurized milk. 
Step 2: Explanation of incorrect options. 
- \(\textit{Staphylococcus aureus}\) 
(B), \(\textit{E. coli}\) 
(C), and \(\textit{Listeria monocytogenes}\) 
(D): These organisms are also harmful but are not the primary index organisms for pasteurization. 
Step 3: Selecting the correct option. 

Since \(\textit{Mycobacterium tuberculosis}\) is the key organism targeted by pasteurization, the correct answer is (A) \(\textit{Mycobacterium tuberculosis}.\)