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    Question

    Niacin

    is
    A used in food preservation at high temperature Correct Answer Incorrect Answer
    B used in food preservation by fermentation Correct Answer Incorrect Answer
    C used in food preservation by irradiation Correct Answer Incorrect Answer
    D vitamin B3 Correct Answer Incorrect Answer

    Solution

    Niacin (vitamin B3) is essential for metabolism. While it has no direct role in preservation methods (A-C), it fortifies foods to prevent deficiency diseases like pellagra.

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