A Plasma-Based Decontamination Process Reveals Potential for an in-Process Surface-Sanitation Method

Methods, which use an indirect plasma treatment for the inactivation of microorganisms in foods, claim a vastly growing field research. This paper presents method that uses plasma-processed air (PPA) as sanitizer. In addition to sanitation concept decontamination produce value chain, presented offers possible application “in-process” surface sanitation. PPA provides antimicrobial-potent species, are predominantly reactive nitrogen species (RNS); this has outstanding groove penetration property. experimental approach, surfaces, made from materials, frequently used construction food-processing plants, were inoculated with different microorganisms. Listeria monocytogenes (ATCC 15313), Staphylococcus aureus 6538), Escherichia coli 10538), Salmonella enterica subsp. serovar Typhimurium 43971), and Enteritidis 13076) all appear foods possess risk cross-contamination plant or vice versa. The contaminated samples treated various times (1–5 min) antimicrobial potencies. Subsequently, microbial load on specimens was determined compared untreated samples. As result, reduction factors (RF) up several log10-steps obtained. Although bacterial strain showed influence RF, major seen by prolongation time increase potency PPA.