Xanthoproteic test is used for
Correct Answer: Amino acids
Description: Xanthoproteic test: The ring systems in phenylalanine, tyrosine and tryptophan undergo nitration on treatment with concentrated nitric acid when heated (Salkowski, 1888). The end product is yellow in color which is intensified in strongly alkaline medium. This reaction causes the yellow stain in the skin by nitric acid.Ref: DM Vasudevan, 7th edition, page no: 31
Category:
Biochemistry
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