STUDIES ON LYSOZYMES VI

APPLICATION OF A NEW COLORIMETRIC ASSAY ON LYSOZYMES

Abstract

The enzymic activity of lysozyme has been colorimetrically determined by 3, 4- dinitrophenyl-tetra-N-acetyl-β-chitotetraoside. The hydrolytic reaction of the sub-strate by human milk lysozyme is most effective in the buffer, pH 6, with Na⁺ concentration of 0.1 M. The hydrolytic activities of three human lysozymes and hen egg white lysozyme have been measured by the colorimetric assay.