Effect of the B Vitamins on the Radiolysis of Aqueous Ethanol and Ethylene Glycol Solutions

Abstract

The effects of vitamins Ç 1 , Ç 2 , and Ç 6 and pyridoxal phosphate on the formation of the final radiolysis products of aqueous ethanol and ethylene glycol solutions were studied. It was found that vitamin Ç 2 and pyridoxal phosphate effectively oxidize CHOH species to suppress their recombination and fragmentation reactions, thereby increasing the yields of corresponding oxidation products. Vitamins Ç 1 and Ç 6 are capable of reducing alcohol radicals to the parent molecules and, hence, decreasing the yields of the main radiolysis products. R . 278

Gamma-radiolysis of the ethanol-water binary system in the presence of oxygen

“…Aqueous ethanol solutions are widely used in stud ies of radioprotectant, antioxidant, and other proper ties of biologically active substances (e.g., vitamins) and their substituted synthetic analogues [1][2][3][4][5]. The activity of these compounds in processes involving free radicals is assessed by measuring the radiation chem ical yield of a certain stable radiolytic product, usually generated by gamma radiation.…”