Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains
The aims of this work were to monitor the dissipation dynamics of the organophosphate insecticides applied to corn grains stored in supervised experiments, establish the dissipation dynamics and determine the minimum period post application necessary to comply with the established commercial standar...
| Autores principales: | , , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba
2024
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/18209 https://revistas.unc.edu.ar/index.php/agris/article/view/30806 https://doi.org/10.31047/1668.298x.v38.n2.30806 |
| _version_ | 1855037811663568896 |
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| author | Strada, Julieta Bruno, Cecilia Nassetta, Mirtha M. Balzarini, Mónica Conles, Martha Y. Rojas, Dante Emanuel Ricca, Alejandra Patricia Cristos, Diego Sebastian Martinez, Maria Jose |
| author_browse | Balzarini, Mónica Bruno, Cecilia Conles, Martha Y. Cristos, Diego Sebastian Martinez, Maria Jose Nassetta, Mirtha M. Ricca, Alejandra Patricia Rojas, Dante Emanuel Strada, Julieta |
| author_facet | Strada, Julieta Bruno, Cecilia Nassetta, Mirtha M. Balzarini, Mónica Conles, Martha Y. Rojas, Dante Emanuel Ricca, Alejandra Patricia Cristos, Diego Sebastian Martinez, Maria Jose |
| author_sort | Strada, Julieta |
| collection | INTA Digital |
| description | The aims of this work were to monitor the dissipation dynamics of the organophosphate insecticides applied to corn grains stored in supervised experiments, establish the dissipation dynamics and determine the minimum period post application necessary to comply with the established commercial standards. The insecticides dichlorvos (DDVP), chlorpyrifosmethyl+deltamethrin (CPM) and pirimiphos-methyl (PMM) were applied to maize grains, which were then stored for 120 days. The samples were processed and extracted using the QuEChERS technique and the pesticide residues were identified and quantified by gas chromatography-mass spectrometry. Deltamethrin residues were not analized. After 90 days of storage, more than 80% of the initial residue had been degraded, and after 120 days the residues were below the detection limit (LoD). DDVP, CPM and PMM residues followed a first order degradation dynamics [Ct = C0×e(-kt)], with k values of 0.384, 0.025 and 0.020 and estimated half-lives of 1.8, 27.7 and 34.7 days, respectively. These results show that at recommended dosages, the insecticides CPM and PMM are safe for use on stored maize grains; DDVP results provide additional evidence further reasserting its prohibition, which dates back to 2018. |
| format | info:ar-repo/semantics/artículo |
| id | INTA18209 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba |
| publisherStr | Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba |
| record_format | dspace |
| spelling | INTA182092024-06-19T11:29:58Z Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains Evaluación de la degradación de residuos de insecticidas organofosforados en granos de maíz (Zea mays L.) almacenados Strada, Julieta Bruno, Cecilia Nassetta, Mirtha M. Balzarini, Mónica Conles, Martha Y. Rojas, Dante Emanuel Ricca, Alejandra Patricia Cristos, Diego Sebastian Martinez, Maria Jose Granos Diclorvos Dichlorvos Clorpirifos-metil Residuos Zea Mays Maiz Insecticidas Grain Chlorpyrifos-methyl Residues Maize Insecticides Postcosecha Dinámica de Degradación Pirimifós-metil Insecticidas Organofosforados Postharvest Degradation Dynamics Pirimiphos-methyl Organophosphate Insecticides The aims of this work were to monitor the dissipation dynamics of the organophosphate insecticides applied to corn grains stored in supervised experiments, establish the dissipation dynamics and determine the minimum period post application necessary to comply with the established commercial standards. The insecticides dichlorvos (DDVP), chlorpyrifosmethyl+deltamethrin (CPM) and pirimiphos-methyl (PMM) were applied to maize grains, which were then stored for 120 days. The samples were processed and extracted using the QuEChERS technique and the pesticide residues were identified and quantified by gas chromatography-mass spectrometry. Deltamethrin residues were not analized. After 90 days of storage, more than 80% of the initial residue had been degraded, and after 120 days the residues were below the detection limit (LoD). DDVP, CPM and PMM residues followed a first order degradation dynamics [Ct = C0×e(-kt)], with k values of 0.384, 0.025 and 0.020 and estimated half-lives of 1.8, 27.7 and 34.7 days, respectively. These results show that at recommended dosages, the insecticides CPM and PMM are safe for use on stored maize grains; DDVP results provide additional evidence further reasserting its prohibition, which dates back to 2018. Los objetivos del trabajo fueron monitorear la degradación de insecticidas organofosforados aplicados a granos de maíz almacenados en ensayos experimentales, establecer las dinámicas de degradación y determinar el tiempo mínimo de espera post aplicación necesario para cumplir con los estándares comerciales. Se aplicaron los insecticidas diclorvós (DDVP), clorpirifós-metil+deltametrina (CPM) y pirimifós-metil (PMM) a granos de maíz almacenados durante 120 días. Las muestras se procesaron y extrajeron mediante la técnica QuEChERS y los residuos de plaguicidas se identificaron y cuantificaron mediante cromatografía de gases-espectrometría de masas. Los residuos de deltametrina no fueron determinados. Luego de 90 días de almacenamiento, más del 80% del contenido inicial de residuos se había degradado y a los 120 días se encontraban por debajo del límite de detección (LoD). Los residuos de DDVP CPM y PMM siguieron una dinámica de degradación de primer orden [Ct =C0 ×e(-kt)], con valores de k de 0,384, 0,025 y 0,020 y vidas medias estimadas de 1;8; 27,7 y 34,7 días respectivamente. Estos resultados permiten concluir que a la dosis recomendada, los insecticidas CPM y PMM se pueden usar de manera segura en granos de maíz almacenados, mientras que los resultados de DDVP aportan información adicional que ratifica su prohibición, que data del año 2018. EEA Manfredi Fil: Strada, Julieta. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bruno, Cecilia. CONICET- Universidad Nacional de Córdoba. Facultad de Ciencias Agrarias. Cátedra de Estadística y Biometría. Grupo vinculado a UFyMA (Unidad de Fitopatología y Modelización Agrícola INTA -CONICET); Argentina. Fil: Nassetta, Mirtha. Provincia de Córdoba. Ministerio de Ciencia y Tecnología; Argentina Fil: Balzarini, Mónica. CONICET- Universidad Nacional de Córdoba. Facultad de Ciencias Agrarias. Cátedra de Estadística y Biometría. Grupo vinculado a UFyMA (Unidad de Fitopatología y Modelización Agrícola INTA -CONICET); Argentina. Fil: Conles, Martha. Universidad Nacional de Córdoba. Facultad de Ciencias Agrarias. Cátedra de Terapéutica; Argentina Fil: Rojas, Dante. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Ricca, Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Área Metropolitana de Buenos Aires; Argentina Fil: Cristos, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Martínez, María José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina 2024-06-19T11:09:11Z 2024-06-19T11:09:11Z 2021-06-15 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/18209 https://revistas.unc.edu.ar/index.php/agris/article/view/30806 1668-298X (Online) https://doi.org/10.31047/1668.298x.v38.n2.30806 eng info:eu-repograntAgreement/INTA/2019-PE-E7-I147-001, Inocuidad de alimentos para consumo humano y animal info:eu-repograntAgreement/INTA/PNCYO/1127022/AR./Identificación de situaciones de riesgo, impacto en los territorios y medidas de manejo para reducir la contaminación con productos fitosanitarios en grano de cereales y oleaginosas. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba AgriScientia 38 (2) : 53-61. (2021) |
| spellingShingle | Granos Diclorvos Dichlorvos Clorpirifos-metil Residuos Zea Mays Maiz Insecticidas Grain Chlorpyrifos-methyl Residues Maize Insecticides Postcosecha Dinámica de Degradación Pirimifós-metil Insecticidas Organofosforados Postharvest Degradation Dynamics Pirimiphos-methyl Organophosphate Insecticides Strada, Julieta Bruno, Cecilia Nassetta, Mirtha M. Balzarini, Mónica Conles, Martha Y. Rojas, Dante Emanuel Ricca, Alejandra Patricia Cristos, Diego Sebastian Martinez, Maria Jose Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title | Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title_full | Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title_fullStr | Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title_full_unstemmed | Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title_short | Evaluation of degradation of organophosphate insecticide residues in stored corn (Zea mays L.) grains |
| title_sort | evaluation of degradation of organophosphate insecticide residues in stored corn zea mays l grains |
| topic | Granos Diclorvos Dichlorvos Clorpirifos-metil Residuos Zea Mays Maiz Insecticidas Grain Chlorpyrifos-methyl Residues Maize Insecticides Postcosecha Dinámica de Degradación Pirimifós-metil Insecticidas Organofosforados Postharvest Degradation Dynamics Pirimiphos-methyl Organophosphate Insecticides |
| url | http://hdl.handle.net/20.500.12123/18209 https://revistas.unc.edu.ar/index.php/agris/article/view/30806 https://doi.org/10.31047/1668.298x.v38.n2.30806 |
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