Document Type

Article

Rights

This item is available under a Creative Commons License for non-commercial use only

Disciplines

Fluids and plasma physics, Analytical chemistry, Food and beverages, 4. AGRICULTURAL SCIENCES

Publication Details

http://dx.doi.org/10.1016/j.jhazmat.2014.02.005

Journal of Hazardous Materials,available online Feb. 12th. 2014.

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

10.1016/j.jhazmat.2014.02.005

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