Free Amino Acids

Subhashini, M H (1981) Free Amino Acids. CMFRI Special Publication (7). pp. 45-47.


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Ninhydrin deaminates amino acids liberating ammonia and gets reduced to hydrindantin. The liberated ammonia condenses with hydrindantin to form a violet coloured compound diketohydrindylidenediketohydrindamine (DYDA) at pH 5.0. Potassium cyanide prevents the oxidation of the reduced hydrindantin. The intensity of violet colour is directly proportional to the amount of amino acid (Yemm & Cocking, 1955).

Item Type: Article
Uncontrolled Keywords: Free Amino Acids
Subjects: Crustacean Fisheries
Fish and Fisheries > Biochemical Study
Divisions: Contributors
CMFRI-Cochin > Marine Capture > Crustacean Fisheries
Depositing User: Geetha P Mrs
Date Deposited: 24 Sep 2010 06:09
Last Modified: 09 Sep 2015 15:20

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