identify me my presence can be detected by using water ,copper sulphate and caustic soda with food
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Presence of proteins in the food can be identified by using water, copper sulphate and caustic soda
Firstly, the solid food is crushed and an adequate amount of water is added to the food sample
Then an equal amount of caustic soda (NaOH) and a few drops of 1% copper sulphate solution (CuSO₄) is added to sample
The presence of protein in the food sample is indicated by Purple/ colour
This test for proteins is known as the Biuret test also known as Piotrowski's test
Explanation:
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