The `alpha`-amino acid which does not give purple colour in the ninhydrin test is

The `alpha`-amino acid which does not give purple colour in the ninhydrin test is
A. proline
B. glycine
C. Phenylalanine
D. aspartic acid

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
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.

4 views Answered 2023-02-05 15:29

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