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    Question

    What is the operating principle behind oven drying for

    determining moisture content of foods?
    A Colour change is measured Correct Answer Incorrect Answer
    B Loss of weight represents loss of water Correct Answer Incorrect Answer
    C Change in refractive index is measured Correct Answer Incorrect Answer
    D Change in light absorbance is measured Correct Answer Incorrect Answer

    Solution

    Oven drying involves heating a food sample to evaporate water. The weight loss is equated to moisture content, as water is the primary volatile component. This gravimetric method is standardized (e.g., AOAC 925.10). 

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