Search results
Results from the WOW.Com Content Network
The Sakaguchi test is a chemical test used to detect presence of arginine in proteins. It is named after the Japanese food scientist and organic chemist, Shoyo Sakaguchi (1900–1995) who described the test in 1925. [1] The Sakaguchi reagent used in the test consists of 1-Naphthol and a drop of sodium hypobromite.
English: Sakaguchi reaction - qualitative reaction for guanidine group. Texts in Ukrainian language Texts in Ukrainian language Українська: Реакція Сакагучі - якісна реакція на гуанідинову групу
The Sakaguchi test detects the presence of arginine in protein; The Hopkins–Cole reaction tests for the presence of tryptophan in proteins; The nitroprusside reaction tests for the presence of free thiol groups of cysteine in proteins; The Sullivan reaction tests for the presence of cysteine and cystine in proteins
Sakaguchi test; Salicylate testing; Schiff test; Schöniger oxidation; Silver nitrate; Simon's reagent; Single-drop microextraction; Sodium fusion test; Sodium hexanitritocobaltate(III) Spot analysis; Spot test (lichen) Sullivan reaction
Efficient oxidation reactions of precursors of important basic chemicals are of particular technical interest. For example, ε-caprolactam can be prepared using NHPI from the so-called KA oil ("ketone-alcohol" oil, a mixture of cyclohexanol and cyclohexanone) which is obtained during the oxidation of cyclohexane. The reaction proceeds via ...
This biochemistry article is a stub. You can help Wikipedia by expanding it.
The characteristic color of a positive biuret test. In chemistry, the biuret test (IPA: / ˌ b aɪ j ə ˈ r ɛ t /, / ˈ b aɪ j ə ˌ r ɛ t / [1]), also known as Piotrowski's test, is a chemical test used for detecting the presence of at least two peptide bonds in a molecule.
The method combines the reactions of copper ions with the peptide bonds under alkaline conditions (the Biuret test) with the oxidation of aromatic protein residues. The Lowry method is based on the reaction of Cu +, produced by the oxidation of peptide bonds, with Folin–Ciocalteu reagent (a mixture of phosphotungstic acid and phosphomolybdic acid in the Folin–Ciocalteu reaction).