Combined Effects of Long-Living Chemical Species during Microbial Inactivation Using Atmospheric Plasma-Treated Water

Author:

Naïtali Murielle1,Kamgang-Youbi Georges1234,Herry Jean-Marie4,Bellon-Fontaine Marie-Noëlle1,Brisset Jean-Louis2

Affiliation:

1. AgroParisTech, UMR1319 Institut Micalis, Equipe Bioadhésion, Biofilms et Hygiène des Matériaux, 25 Avenue de la République, 91300 Massy, France

2. Université de Rouen, UFR Sciences, Département de Chimie, 76821 Mont Saint Aignan, France

3. Université de Yaoundé I, Département de Chimie Inorganique, Laboratoire de Chimie Minérale, P.O. Box 812, Yaoundé, Cameroon

4. INRA, UMR1319 Institut Micalis, Equipe Bioadhésion, Biofilms et Hygiène des Matériaux, Domaine de Vilvert, 78350 Jouy-en-Josas, France

Abstract

ABSTRACT Electrical discharges in humid air at atmospheric pressure (nonthermal quenched plasma) generate long-lived chemical species in water that are efficient for microbial decontamination. The major role of nitrites was evidenced together with a synergistic effect of nitrates and H 2 O 2 and matching acidification. Other possible active compounds are considered, e.g., peroxynitrous acid.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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