ninhydrin reaction


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nin·hy·drin re·ac·tion

a test for proteins, peptones, peptides, and amino acids possessing free carboxyl and α-amino groups that is based upon the reaction with triketohydrindene hydrate; a blue color reaction is used to quantitate free amino acids (for example, after hydrolysis and separation of the amino acids of a protein).

nin·hy·drin re·ac·tion

(nin-hī'drin rē-ak'shŭn)
A procedure for proteins, peptones, peptides, and amino acids possessing free carboxyl and α-amino groups that is based on the reaction with triketohydrinene hydrate; a blue color reaction is used to quantitate free amino acids.
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References in periodicals archive ?
Amino acid in sweat can be detected using ninhydrin reaction.
Proline content was estimated using ninhydrin reaction (Bates et al.
As a result, it was confirmed that much protein was included in carbonate warm water by a ninhydrin reaction.
The A spot was positive for both Millon's and the Ninhydrin reaction.
The concentration of free amino groups in TCA soluble protein was determined with the ninhydrin reaction by spectrophotometer (Sarin et al.