New SIDBI Grade A New Batch Starts on Nov 18

    Register

    Question

    Which of the following is true with regard to growth of microorganisms:

    A Water activity requirement of microorganisms decreases in the following order: Bacteria> yeast> moulds Correct Answer Incorrect Answer
    B Dried or low moisture food require water activity minimum between 80 to 100 for growth of microbes Correct Answer Incorrect Answer
    C Intermediate moisture food requires water activity less than 0.1 Correct Answer Incorrect Answer
    D Organisms with an optimum temperature between 90° to 105° are thermophiles Correct Answer Incorrect Answer

    Solution

    • Dried or low moisture food require water activity between 0.0 and 0.6 growth of microbes.
    • Organisms with an optimum temperature between 45°- 70° C are called thermophiles.

    Practice Next