This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Which is not used in pasteurization - 
Select and explain. 
A. Phosphatase test, B. Methylene blue test, C. Coliform count, D. Standard plate count
B: Methylene blue test
Answer: B: Methylene blue test 
Explanation: Methylene blue reduction test is an indirect method for detection of microorganism. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 606