Question

How can you test the proteins in the given food example.

Answer 1

Answer:

Food Test for Proteins

Take the given food sample, prepare the extract of the given food sample. Then add the aqueous copper sulphate to the prepared food extract. A solution turns violet in colour confirms the presence of protein in the foodstuff.

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Answer 2

Answer:

Following steps are used to test if a food item contains protein.

Take a small quantity of the food items to be tested.

Grind/mash the food item.

Put the food item into a test tube.

Add 10 drops of water and shake the test tube.

Add two drops of copper sulphate solution to the test tube, using a dropper.