Sullivan and McCarthy’s Test- Definition, Principle, Procedure, Result, Uses

Sullivan and McCarthy’s Test

Sullivan and McCarthy’s Test Definition Sullivan and McCarthy’s test is a biochemical test for the detection of the amino acid methionine or methionine-containing proteins. The test is a specific test for methionine which has a high degree of specificity towards methionine as it gives negative results with all other amino acids. The test, however, gives a positive result with glycylmethionine. …

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Solubility Tests of Proteins- Definition, Principle, Procedure, Result, Uses

Solubility Tests of Proteins

Solubility Tests of Proteins Definition Solubility tests are tests performed to determine the ability of compounds to dissolve in a solvent, which is usually a liquid. These tests are essential to determine the size and polarity of unknown compounds and the presence of acidic and basic functional groups. Solubility tests for proteins and amino acids are qualitative tests that determine …

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Acree-Rosenheim Test- Definition, Principle, Procedure, Result, Uses

Acree-Rosenheim test

Acree-Rosenheim test definition Acree-Rosenheim Test is a biochemical test used for the detection of tryptophan molecules in a protein sample. Acree-Rosenheim test is one of the essential tests for the confirmation of formaldehyde in the milk as milk vendors use formaldehyde as a preservative. This test thus helps to understand the condition of the milk sample so as to determine …

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Ninhydrin Test- Definition, Principle, Procedure, Result, Uses

Ninhydrin Test

Ninhydrin Test Definition Ninhydrin test is a chemical test performed to detect the presence of ammonia, primary/secondary amines, or amino acids. This test involves the addition of ninhydrin reagent to the test sample that results in the formation of deep blue color, often termed as Ruhemann’s purple, in the presence of an amino group. Objectives of Ninhydrin Test To detect …

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Amino Acids- Properties, Structure, Classification and Functions

Amino Acids- Properties, Structure, Classification and Functions

Amino acids constitute a group of neutral products clearly distinguished from other natural compounds chemically, mainly because of their ampholytic properties, and biochemically, mainly because of their role as protein constituents. An amino acid is a carboxylic acid-containing an aliphatic primary amino group in the α position to the carboxyl group and with a characteristic stereochemistry. Proteins are biosynthesized from …

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