Practice question

Which of the following statements regarding moisture determination in food products are correct? A. The vacuum oven drying method is recommended for heat-sensitive or sugary foods, using lower temperatures of 60-70°C. B. Refractometry is an indirect method where the measured refractive index increases as the moisture content of the solution decreases. C. Direct distillation involves using azeotropic solvent mixtures such as toluene or xylene that distill with water at a constant ratio. D. Karl Fischer titration is a selective chemical method based on the reaction of water with sulfur dioxide and iodine in pyridine and alcohol. Choose the correct answer:

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Correct answer

A, C and D Only

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