Which test is used to detect protein in food?
Answer and explanation
Correct answer: B. biuret solution, which turns purple
Protein is detected with biuret solution, which turns purple.
Answer: biuret solution, which turns purple.
Why not the others: Benedict's solution, which turns brick red on heating: it is the test for glucose. the ethanol emulsion test, which turns cloudy white: it is the test for fat. iodine solution, which turns blue-black: it is the test for starch.
Answer: biuret solution, which turns purple.
Why not the others: Benedict's solution, which turns brick red on heating: it is the test for glucose. the ethanol emulsion test, which turns cloudy white: it is the test for fat. iodine solution, which turns blue-black: it is the test for starch.
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