Xanthoproteic Test

Qualitative Test of Protein / Amino Acids
Xanthoproteic Test
Xanthoproteic test is used to detect amino acids containing an aromatic nucleus (tyrosine, tryptophan and phenylalanine) in a protein solution which gives yellow color nitro derivatives on heating with conc. HNO3. The aromatic benzene ring undergoes nitration to give yellow colored product. Phenylalanine gives negative or weakly positive reaction though this amino acid contains aromatic nucleus because it is difficult to nitrate under normal condition. On adding alkali to these nitro derivative salts, the color change from yellow to orange.

[@hassanbangash1940]

Thanks alot
Revising tests for tomorrow biochemistry exam

[@user-hg3hs2rm9x]

Same here

[@ronix9112]

Doing for class 11 practical

[@WEKDARIO]

Love this procedure

[@swarnadeepghosh4523]

❤❤

[@hidayakhalid3277]

Superbbb

[@Zehra.99]

Thank you

[@ABDULRAHMAN-ih8hn]

thanks a lot I hope more test

[@nourabyasalam45]

You should use gloves, for the manipulation of chimics éléments

[@zaramobeen6646]

thank you!!!

[@ningarajrhalliningaraj445]

TQ miss

[@rohankumar-ii3wf]

Tq maim🙏

[@shalutyagibiology3929]

What is your sample for this experiment
Please tell me

[@bhumikachauhan333_]

💯❤🙌

[@vani6965]

1:30

[@gudiya2894]

Samples name

[@AaryanNakhate]

Egg albumin (egg white)

[@saishortfilms]

How many minutes to heat

[@prajwalsr461]

Till it boil