Synergistic Action of Ultraviolet Radiation and Hydrogen Peroxide on Citrulline

Abstract

Ultraviolet irradiation of citrulline in the presence of hydrogen peroxide formed aspartic acid, glutamic acid, glycine, α-aminobutyric acid, norvaline, arginine and two unidentified ninhydrin-reactive products. Irradiation of citrulline, both in the presence and absence of hydrogen peroxide, formed ammonia and urea. The reactions followed the first-order kinetics with increased reaction constants in the presence of hydrogen peroxide. Without UV light, hydrogen peroxide itself had no effect on citrulline.