Inactivation mechanism and kinetics of dielectric barrier discharge plasma against Escherichia coli O157:H7 in phosphate-buffered saline

• Published in: CYTA: journal of food Vol. 22; no. 1
• Main Authors: Niu, Liyuan, Zhang, Dianhe, Wang, Bohua, Xiang, Qisen, Bai, Yanhong
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 31.12.2024; Taylor & Francis Ltd; Taylor & Francis Group
• Subjects: Acetylcysteine; air; Antibacterial activity; antibacterial properties; antioxidants; Bioengineering; Buffers; Cell morphology; cell structures; Deactivation; Decontamination; Dielectric barrier discharge; dielectric barrier discharge plasma; E coli; Escherichia coli; Escherichia coli O157; Escherichia coli O157:H7; Food products; Food quality; Food safety; Glutathione; Inactivation; Inner membranes; Investigations; Kinetics; Microorganisms; Nitrogen; Oxidation; Oxygen; Plasma; Reactive nitrogen species; reactive oxygen and nitrogen species (RONS); Reactive oxygen species; redox potential; Scavenging; species; Weibull statistics

This study investigated the inactivation mechanism and kinetics of dielectric barrier discharges (DBD) plasma against Escherichia coli O157:H7. DBD plasma exhibited a remarkable bactericidal effect, and the inactivation kinetics was well described with the Weibull model. Using the ambient air as the...