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
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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.