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Q: What does it mean when the protein test turn purple?
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Related questions

What color does Biuret turn in the presence of protein?

purple


What is formed when cuso4 n naoh are used for protein test?

the mixture turn purple. cuso4 n naoh is use to detect the presence of peptide bonds in protein


If biuret reagent turns purple what substance is present?

food that has protein like milk will cause the Biuret solution to turn purple.


How do you test for proteins?

The most reliable protein test is the Biuret test, which detects peptide links. It is performed as follows... 1. Place a sample of the solution to be tested in a test tube and add an equal volume of sodium hydroxide solution at room temperature. 2. Add a few drops of very dilute (0.05%) copper II sulphate solution and mix gently. 3. A purple coloration indicates the presence of peptide bonds and hence a protein. If no protein is present, the solution remains blue.


Why does biuret reagent turn the skin brownish purple?

Biuret reagent react with the skin proteins.


What is the chemical indicator used to test protein?

To test for protein. Biuret or solutions of sodium hydroxide and copper sulfate. Tested with a dropper a + result will be purple or something


What does it mean when your dogs anus turn purple?

Well, That is very VERY Rare for a dog's But hole turns Purple. But Dogs skin can turn Purple, It is Hypothyroidism. You can get this treated at an affordable cost.Hope This Helped!


Why do your lips turn purple?

Yes they do turn purple but i do not know why


Can chamelions turn purple?

Yes a Chamelions can turn purple


Boiled beets turn what color?

Beets turn a magenta and become very wrinkly. The water turns bright pinkish purple. The beet water is good protein and delicious for smoothies.


What is the change in color in testing for the presence of protein in egg albumin using solution sodium hydroxide and copper sulfate?

Copper sulphate when mixed with a protein will turn purple if the amount of protein is sufficient enough in quantity to trigger the reaction. Planex1234 says; No offense but i think it is starch that turns dark blue - purple. Thetada says: the colour changes are arguably similar. Iodine solution goes blue/black in the presence of starch. The colour that sodium hydroxide / copper sulphate solution goes in the presence of protein is variously described as mauve / purple.


How do you turn purple to blue?

purple+white