Answer / akhila

this is a reaction of aminoacid with triketohydrindene
hydrate;
ninhydrin=indane-1,2,3-trione hydrate
it is a powerful oxidising agent and causes oxidative
decarboxylation of alpha aminoacids producing co2 ,nh3 and
an aldehyde with one less carbon atom than the parent amino
acid.
the reduced ninhydrin reacts with the liberated nh3 and a
mole of ninhydrin forming blue coloured ruheman's complex.
this is known as ninhydrin reaction.

Answer / sunilreddy.vancha

A test for proteins, peptones, peptides, and amino acids
possessing free carboxyl and alpha-amino groups in which
ninhydrin reacts with such compounds to produce a blue
color.

Answer / swetha

Ninhydrin test is used for detection of amino acids,proteins
obviously this is the best method for detection of amino acids.
NINHYDRIN REAGENT+amino acids=blue color reaction

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