Kinetics of Bacterial Inactivation by Peroxynitric Acid in the Presence of Organic Contaminants.

ABSTRACT: Low-temperature atmospheric-pressure plasma has been studied for disinfection purposes. When plasma is exposed to water, reactive oxygen and nitrogen species are generated and preserved in the water fraction (plasma-treated water [PTW]), which consequently exhibits bactericidal activity. At low temperatures, one of the bactericidal components of PTW is peroxynitric acid (PNA). Importantly, PNA can also be synthesized by chemical reaction, without exposure to plasma. In this study, we evaluated the bactericidal properties of PNA based on reaction kinetics in comparison with other disinfectants. The analysis, based on dose-dependent effects, showed that PNA exhibited about 1 and 10 times the bactericidal activity of hypochlorous acid (HOCl) and peracetic acid, respectively. In addition, we e

SUBMITTER: Yokoyama T 

PROVIDER: S-EPMC7783340 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature