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What is the D-value for a microorganism if it takes 5 minutes to reduce the popu

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Question: What is the D-value for a microorganism if it takes 5 minutes to reduce the population by 90% at 121°C?

Options:

  1. 1 minute
  2. 2 minutes
  3. 5 minutes
  4. 10 minutes

Correct Answer: 5 minutes

Solution: 

The D-value is the time required to reduce the microbial population by 90%, which in this case is 5 minutes.

What is the D-value for a microorganism if it takes 5 minutes to reduce the popu

Practice Questions

Q1
What is the D-value for a microorganism if it takes 5 minutes to reduce the population by 90% at 121°C?
  1. 1 minute
  2. 2 minutes
  3. 5 minutes
  4. 10 minutes

Questions & Step-by-Step Solutions

What is the D-value for a microorganism if it takes 5 minutes to reduce the population by 90% at 121°C?
Correct Answer: 5 minutes
  • Step 1: Understand what D-value means. It is the time needed to reduce the number of microorganisms by 90%.
  • Step 2: Look at the information given. It says it takes 5 minutes to reduce the population by 90% at 121°C.
  • Step 3: Since the D-value is defined as the time to reduce the population by 90%, we can directly use the time given.
  • Step 4: Conclude that the D-value for this microorganism at 121°C is 5 minutes.
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