Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://doi.org/10.1016/j.jspr.2017.08.008 http://www.locus.ufv.br/handle/123456789/21753 |
Resumo: | This work investigates the kinetics of degradation of pirimiphos-methyl residues in maize grains exposed to ozone gas and evaluates the effect of ozonation on grain quality. The assays employed maize grains treated with the insecticide, namely Actellic 500 CE® (pirimiphos-methyl), which were exposed for different periods to ozone gas at a concentration of 0.86 mg L−1, provided at a continuous flow rate of 1.0 L min−1. The insecticide residues were extracted from the grains using solid-liquid extraction with low temperature partitioning. The extracts were analyzed by gas chromatography with electron capture detection. Ozone effectively degraded more than 91% of the pirimiphos-methyl residues, with the degradation efficiency increasing in direct proportion to the duration of exposure to the gas. A first order kinetic model provided the best fit to the degradation data. The use of ozone gas did not alter the qualitative characteristics of the maize. |
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Freitas, Romenique da Silva deFaroni, Lêda Rita D'AntoninoQueiroz, Maria Eliana Lopes Ribeiro deHeleno, Fernanda FernandesPrates, Lucas Henrique Figueiredo2018-09-11T17:59:16Z2018-09-11T17:59:16Z2017-120022474Xhttps://doi.org/10.1016/j.jspr.2017.08.008http://www.locus.ufv.br/handle/123456789/21753This work investigates the kinetics of degradation of pirimiphos-methyl residues in maize grains exposed to ozone gas and evaluates the effect of ozonation on grain quality. The assays employed maize grains treated with the insecticide, namely Actellic 500 CE® (pirimiphos-methyl), which were exposed for different periods to ozone gas at a concentration of 0.86 mg L−1, provided at a continuous flow rate of 1.0 L min−1. The insecticide residues were extracted from the grains using solid-liquid extraction with low temperature partitioning. The extracts were analyzed by gas chromatography with electron capture detection. Ozone effectively degraded more than 91% of the pirimiphos-methyl residues, with the degradation efficiency increasing in direct proportion to the duration of exposure to the gas. A first order kinetic model provided the best fit to the degradation data. The use of ozone gas did not alter the qualitative characteristics of the maize.engElsevier Journal of Stored Products Researchv. 74, p. 1- 5, december 2017Elsevier Ltd.info:eu-repo/semantics/openAccessZea maysPesticideOzonationFumigationGrain qualityDegradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdfTexto completoapplication/pdf486082https://locus.ufv.br//bitstream/123456789/21753/1/artigo.pdfca37dcc5d8ef7cf2272c8faabb18e603MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/21753/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg5324https://locus.ufv.br//bitstream/123456789/21753/3/artigo.pdf.jpg4b1d53f7f48e5209d9f79c68f3c50d05MD53123456789/217532018-09-11 23:00:49.709oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-09-12T02:00:49LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
title |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
spellingShingle |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas Freitas, Romenique da Silva de Zea mays Pesticide Ozonation Fumigation Grain quality |
title_short |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
title_full |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
title_fullStr |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
title_full_unstemmed |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
title_sort |
Degradation kinetics of pirimiphos-methyl residues in maize grains exposed to ozone gas |
author |
Freitas, Romenique da Silva de |
author_facet |
Freitas, Romenique da Silva de Faroni, Lêda Rita D'Antonino Queiroz, Maria Eliana Lopes Ribeiro de Heleno, Fernanda Fernandes Prates, Lucas Henrique Figueiredo |
author_role |
author |
author2 |
Faroni, Lêda Rita D'Antonino Queiroz, Maria Eliana Lopes Ribeiro de Heleno, Fernanda Fernandes Prates, Lucas Henrique Figueiredo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Freitas, Romenique da Silva de Faroni, Lêda Rita D'Antonino Queiroz, Maria Eliana Lopes Ribeiro de Heleno, Fernanda Fernandes Prates, Lucas Henrique Figueiredo |
dc.subject.pt-BR.fl_str_mv |
Zea mays Pesticide Ozonation Fumigation Grain quality |
topic |
Zea mays Pesticide Ozonation Fumigation Grain quality |
description |
This work investigates the kinetics of degradation of pirimiphos-methyl residues in maize grains exposed to ozone gas and evaluates the effect of ozonation on grain quality. The assays employed maize grains treated with the insecticide, namely Actellic 500 CE® (pirimiphos-methyl), which were exposed for different periods to ozone gas at a concentration of 0.86 mg L−1, provided at a continuous flow rate of 1.0 L min−1. The insecticide residues were extracted from the grains using solid-liquid extraction with low temperature partitioning. The extracts were analyzed by gas chromatography with electron capture detection. Ozone effectively degraded more than 91% of the pirimiphos-methyl residues, with the degradation efficiency increasing in direct proportion to the duration of exposure to the gas. A first order kinetic model provided the best fit to the degradation data. The use of ozone gas did not alter the qualitative characteristics of the maize. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-12 |
dc.date.accessioned.fl_str_mv |
2018-09-11T17:59:16Z |
dc.date.available.fl_str_mv |
2018-09-11T17:59:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://doi.org/10.1016/j.jspr.2017.08.008 http://www.locus.ufv.br/handle/123456789/21753 |
dc.identifier.issn.none.fl_str_mv |
0022474X |
identifier_str_mv |
0022474X |
url |
https://doi.org/10.1016/j.jspr.2017.08.008 http://www.locus.ufv.br/handle/123456789/21753 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 74, p. 1- 5, december 2017 |
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Elsevier Ltd. info:eu-repo/semantics/openAccess |
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Elsevier Ltd. |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Journal of Stored Products Research |
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Elsevier Journal of Stored Products Research |
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