Combined effect of atmospheric gas plasma and UVA light: A sustainable and green alternative for chemical decontamination and microbial inactivation of fish processing water

The simultaneous use of UVA light irradiation coupled with low energy cold plasma generated by a dielectric barrier discharge prototype, results in significant enhancement of efficiency of the integrated process with respect to the sole plasma treatment. This effect has been demonstrated both on mic...

Full description

Saved in:
Bibliographic Details
Published in:Chemosphere (Oxford) 2023-03, Vol.317, p.137792-137792, Article 137792
Main Authors: Zorzi, Vittorio, Berardinelli, Annachiara, Gozzi, Giorgia, Ragni, Luigi, Vannini, Lucia, Ceccato, Riccardo, Parrino, Francesco
Format: Article
Language:English
Subjects:
Colony Count, Microbial
Decontamination - methods
Dielectric barrier discharge
Food Contamination - analysis
Food processing water
Microbial inactivation
Microbial Viability
Peroxynitrite
Plasma Gases - analysis
Plasma Gases - pharmacology
Process intensification
Ultraviolet Rays
UVA light
Water - analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The simultaneous use of UVA light irradiation coupled with low energy cold plasma generated by a dielectric barrier discharge prototype, results in significant enhancement of efficiency of the integrated process with respect to the sole plasma treatment. This effect has been demonstrated both on microbial inactivation of a food-borne pathogen, i.e. Listeria monocytogenes, and on the degradation of a compound of biological origin such as phenylalanine. In the latter case, the analysis of its reaction intermediates and the spectroscopic identification and quantification of peroxynitrites, allowed to propose mechanistic hypotheses on the nature of the observed synergistic effects. Moreover, it has been demonstrated that the process does not affect the quality of trout fillets, indicating its suitability as a chlorine-free, green, and sustainable tool for the decontamination of fish processing water. [Display omitted] •Cold plasma is a chlorine-free technique for water decontamination and disinfection.•Coupling cold plasma with UVA irradiation leads to process intensification.•Synergy explained by the presence of photoactive species in plasma-activated water.•The treatment does not affect the quality of the food.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2023.137792