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      Question

      The time required to kill 90% of the microorganisms in

      a sample at a specific temperature is the
      A thermal death point Correct Answer Incorrect Answer
      B F value Correct Answer Incorrect Answer
      C D value Correct Answer Incorrect Answer
      D Z value Correct Answer Incorrect Answer

      Solution

      The D -value  refers to time taken at a given temperature to reduce the population of exposed microorganisms by 90% or achieve a 1-log reduction.

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