Testing For Protein

Testing For Protein-The biuret test
16.08.18

Aim: To test if a sample of food contains problem

Equipment: Test tube, Sodium hydroxide, Copper sulfate, Food sample.

Method

1. Place about 2ml of the sample into a test tube and add 5 drops of sodium hydroxide.

2. Add 5 drops of copper sulfate.

3. Shake the test tube gently from side to side.

Conclusion: My conclusion came down to that both items were protein as they both turned purple the items were 1.Egg yolk  2.Milk.