The alpha-amino acid which does not give purple colour in the ninhydri – InterviewSolution

1.	The alpha-amino acid which does not give purple colour in the ninhydrin test is
Answer» proline glycine PHENYLALANINE aspartic acid Solution :NINHYDRIN test is HIGHLY specific for primary amines. Proline being a secondary amine GIVES a yellow orange colour with Nlnhydrin whereas all other `alpha`-amino acids give a blue purple colour with Ninhydrin.

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