Science, asked by shahnaviya151, 3 months ago

Describe how protein is tested in food.​

Answers

Answered by jll
27

Answer:

There are different ways to do that,

most famous one is Biurette Test!

Proteins are detected using Biurette reagent.

This turns a mauve or purple colour when mixed with protein.

Answered by VineetaGara
0

Protein in the food can be tested using any of the following methods: Biuret test, Ninhydrin test, Xanthroproteic test, or Millon's test.

  • 1) Biuret test
  • prepare a food extract
  • Add Aqueous copper sulfate.
  • If the solution turns violet, it indicates the presence of protein.
  • 2) Ninhydrin test
  • Prepare the food extract.
  • Add pyridine ninhydrine solution.
  • If the solution turns violet, it indicates the presence of protein.
  • 3) Xanthoproteic test
  • Prepare the food extract
  • Add nitric acid solution.
  • If the solution turns yellow, it indicates the presence of protein.
  • 4) Millons test
  • Prepare the food extract
  • Add sodium nitrite and sulphuric acid to it followed by mercuric sulfate
  • Brick red color appears if there is a protein
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