Document Type
Article
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Disciplines
Fluids and plasma physics, Analytical chemistry, Food and beverages, 4. AGRICULTURAL SCIENCES
Abstract
In-package nonthermal plasma (NTP) technology is a novel technology for the decontamination of foods and biological materials. This study presents the first report on the potential of the technology for the degradation of pesticide residues. A cocktail of pesticides, namely Azoxystrobin, Cyprodinil, Fludioxonil and Pyriproxyfen was tested on strawberries. The concentrations of these pesticides were monitored in priori and post- plasma treatment using GC-MS/MS. An applied voltage and time dependent degradation of the pesticides was observed for treatment voltages of 60, 70 and 80 kV and treatment durations ranging from 1 to 5 min, followed by 24 h in-pack storage. The electrical characterisation revealed the operation of the discharge in a stable filamentary regime. The discharge was found to generate reactive oxygen and excited nitrogen species as observed by optical emission spectroscopy.
DOI
https://doi.org/10.1016/j.jhazmat.2014.02.005
Recommended Citation
Misra, N. N., Pankaj, S. K., Walsh, T., O’Regan, F., Bourke, P., & Cullen, P. J. In-package nonthermal plasma degradation of pesticides on fresh produce. Journal of Hazardous Materials, in-press, http://dx.doi.org/10.1016/j.jhazmat.2014.02.005
Funder
Irish Research Council
Included in
Atomic, Molecular and Optical Physics Commons, Food Chemistry Commons, Food Processing Commons, Other Chemical Engineering Commons, Plasma and Beam Physics Commons
Publication Details
http://dx.doi.org/10.1016/j.jhazmat.2014.02.005
Journal of Hazardous Materials,available online Feb. 12th. 2014.