Question

What are the incubation temperature and duration for detection of coliforms in milk?

• A. 20°C and 30°C
• B. 20°C and 32°C
• C. 22°C and 32°C
• D. 22°C and 37°C

Hint:

Coliform detection: 22°C and 32°C.
Psychrotrophic coliforms.
Important for milk quality testing.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Coliforms are detected using specific incubation conditions.
The temperature and duration are standardized.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the conditions for coliform detection.
Step 3: Detailed Explanation:
The incubation temperature and duration for coliform detection are 22°C and 32°C.
This is for psychrotrophic coliforms.
Other temperatures are for different organisms.
Thus, 22°C and 32°C are the correct conditions.
Step 4: Final Answer:
The incubation conditions are 22°C and 32°C.
Hence, the correct option is (C). \bigskip