how will you test the presence of protein,carbohydrate
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Hey friend here is your answer
Test to know the protein in the food
To a test tube, add 40 drops of liquid to be tested.If testing more than one liquid, label each test tube with a marker.Add 3 drops of Biuret reagent solution to each test tube. Shake gently to mix.Note any color change. Proteins will turn solution pink or purple.
Test to know the carbohydrates in the food
Testing for the presence of starch (complex sugar) Lugol's reagent (iodine solution) changes from yellowish-brown to dark purple/black.Testing for simple carbohydrates (monosaccharides and some disaccharides) Benedict's solution is used to test for simple compound.
Hope it will help u
Test to know the protein in the food
To a test tube, add 40 drops of liquid to be tested.If testing more than one liquid, label each test tube with a marker.Add 3 drops of Biuret reagent solution to each test tube. Shake gently to mix.Note any color change. Proteins will turn solution pink or purple.
Test to know the carbohydrates in the food
Testing for the presence of starch (complex sugar) Lugol's reagent (iodine solution) changes from yellowish-brown to dark purple/black.Testing for simple carbohydrates (monosaccharides and some disaccharides) Benedict's solution is used to test for simple compound.
Hope it will help u
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