In-package nonthermal plasma degradation of pesticides on fresh produce

N. N. Misra; S. K. Pankaj; Tony Walsh; Finbarr O'Regan; Paula Bourke; P. J. Cullen

doi:10.1016/j.jhazmat.2014.02.005

In-package nonthermal plasma degradation of pesticides on fresh produce

N. N. Misra, S. K. Pankaj, Tony Walsh, Finbarr O'Regan, Paula Bourke, P. J. Cullen

Research output: Contribution to journal › Article › peer-review

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 on fresh produce. 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.

Original language	English
Pages (from-to)	33-40
Number of pages	8
Journal	Journal of Hazardous Materials
Volume	271
DOIs	https://doi.org/10.1016/j.jhazmat.2014.02.005
Publication status	Published - 2014

Keywords

Dielectric barrier discharge
GC-MS/MS
Nonthermal plasma
Pesticide

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title = "In-package nonthermal plasma degradation of pesticides on fresh produce",

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 on fresh produce. 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.",

keywords = "Dielectric barrier discharge, GC-MS/MS, Nonthermal plasma, Pesticide",

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doi = "10.1016/j.jhazmat.2014.02.005",

language = "English",

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T1 - In-package nonthermal plasma degradation of pesticides on fresh produce

AU - Misra, N. N.

AU - Pankaj, S. K.

AU - Walsh, Tony

AU - O'Regan, Finbarr

AU - Bourke, Paula

AU - Cullen, P. J.

PY - 2014

Y1 - 2014

N2 - 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 on fresh produce. 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.

AB - 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 on fresh produce. 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.

KW - Dielectric barrier discharge

KW - GC-MS/MS

KW - Nonthermal plasma

KW - Pesticide

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VL - 271

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

In-package nonthermal plasma degradation of pesticides on fresh produce

Abstract

Keywords

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