What is the mechanism for sakaguchi test?

The Sakaguchi test is a colorimetric assay used to detect the presence of arginine in a sample. It involves the reaction of arginine with naphthol and hypochlorite under alkaline conditions, leading to the formation of a reddish-purple complex. This color change indicates a positive result, confirming the presence of arginine. The test is often utilized in microbiology and biochemistry for identifying specific bacterial strains.