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copper(II) ions + protein (2 or more peptide bonds) ---> biuret complex (PURPLE!)
the intensity of the purple depends on how many copies of the complex have been formed.
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∙ 15y ago
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What chemical reagent of protein?
Biuret reagent is used to test for protein in urine. It is a common test that students in biology class perform. Urine is added to a test tube, followed by approximately the same amount of Biuret reagent. If the solution turns lavender this means that there are proteins present in the urine.
Does biuret reagent corrosive and poison?
yes
Will glutamic acid give a positive biuret test?
Amino acids doesn't react with the biuret reagent.
What is the difference between Benedict's Reagent and Biuret Reagent?
Benedicts reagent is used to check reducing sugars , it need hat to work and gives red color when positive ,. While biuret reagent is for proteins .there is no need to use heat and gives purple , violet color when positive ..
How do you test for protein in food?
Use Biuret reagent.
What is biuret reagent used for?
Biuret reagent detect peptide bonds.
What is the reagent used to test proteins?
Buiret Reagent
What chemical reagent of protein?
Biuret reagent is used to test for protein in urine. It is a common test that students in biology class perform. Urine is added to a test tube, followed by approximately the same amount of Biuret reagent. If the solution turns lavender this means that there are proteins present in the urine.
What reagent is used to detect protein in a solution?
biuret reagent
Does biuret reagent corrosive and poison?
yes
What might Biuret reagent test in a practical real life situation?
Biuret reagent test in a practical situation tests for lipids. Biuret is used in food agents for protein amino acid chains.
Will glutamic acid give a positive biuret test?
Amino acids doesn't react with the biuret reagent.
Test for protein in food?
The Biuret reagent can be used.
What is the difference between Benedict's Reagent and Biuret Reagent?
Benedicts reagent is used to check reducing sugars , it need hat to work and gives red color when positive ,. While biuret reagent is for proteins .there is no need to use heat and gives purple , violet color when positive ..
Why biuret regent react with single amino acid?
The biuret reagent should not react with a single amino acid. The reagent reacts when there is a peptide bond linking amino acids together. If you are seeing the biuret reagent react in the presence of a single amino acid, then there must be some amino acids that are still linked together.
Why does biuret reagent turn the skin brownish purple?
Biuret reagent react with the skin proteins.
If you mixed albumin with 5 drops of biuret reagent what color do you get?
Purple or black
