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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 b)      F value c)       D value d)      Z value
    A Only A is correct Correct Answer Incorrect Answer
    B Only B is correct Correct Answer Incorrect Answer
    C Only C is correct Correct Answer Incorrect Answer
    D A and B are correct Correct Answer Incorrect Answer
    E C and D are correct Correct Answer Incorrect Answer

    Solution

    Explanation: 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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