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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
12/11/2015 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BESIL, N.; PÉREZ-PARADA, A.; CESIO, V.; VARELA, P.; RIVAS, F.; HEINZEN, H. |
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Afiliación : |
NATALIA BESIL, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); Universidad de la República (UdelaR)/ Facultad de Química; ANDRÉS PÉREZ-PARADA, Universidad de la República (UdelaR)/ Facultad de Química; VERÓNICA CESIO, Universidad de la República (UdelaR)/ Facultad de Química; PABLO NICOLAS VARELA PESSOLANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS FERNANDO RIVAS GRELA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; HORACIO HEINZEN, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); Universidad de la República (UdelaR)/ Facultad de Química. |
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Título : |
Degradation of imazalil, orthophenylphenol and pyrimethanil in Clementine mandarins under conventional postharvest industrial conditions at 4 °C. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Food Chemistry, 2016, v.194, p. 1132-1137. |
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ISSN : |
0308-8146 |
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DOI : |
10.1016/j.foodchem.2015.08.111 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 16 April 2015 / Received in revised form 25 August 2015 / Accepted 25 August 2015 / Available online 29 August 2015.
Chemical compounds studied in this article: Imazalil (PubChem CID: 37175) / Orthophenylphenol (PubChem CID: 7017) / Pyrimethanil (PubChem CID: 91650). |
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Contenido : |
ABSTRACT.
The degradation of the postharvest fungicides imazalil, orthophenylphenol, and pyrimethanil was studied on Clementine mandarins during packinghouse storage for a 28 day period at 4 C. Fruits to which orthophenylphenol was applied, were treated with imazalil and pyrimethanil at doses of 1000 and 2000 mg L1, using cascade application for the later and cascade and wax for the former. The decay of the three fungicides was evaluated using an in-house validated analytical procedure that includes the extraction and dispersive clean up of the samples followed by the GC?MS determination of the pesticide residues. The impact of fruit storage time on pesticide residues concentration was assessed. The residues
found for the different application technologies were always below the established Maximum Residue Limits by the Codex Alimentarius and the European Union (5 mg kg1 for imazalil, 7 and 8 mg kg1 for pyrimethanil, and 10 mg kg1 and 5 mg kg1 for orthophenylphenol). The fungicides dissipated differentially.
Pyrimethanil showed little degradation, if any, at both tested concentrations, but the half-life of imazalil on the fruit was 15?18 days, independent of the application technology. Orthophenylphenol dissipated with a half-life of 15 days. The initial imazalil residue found after cascade treatment was not significantly different between the doses studied (p < 0.5), whereas when the fungicide was included in wax as an emulsifiable concentrate the initial and final imazalil residues were significantly different.
Final residue levels after 28 days of storage were 0.12?0.24 mg kg1 for imazalil, 0.68 mg kg1 for 2-phenylphenol and 0.56 mg kg1 for pyrimethanil for all the evaluated treatments.
2015 Elsevier Ltd. All rights reserved. MenosABSTRACT.
The degradation of the postharvest fungicides imazalil, orthophenylphenol, and pyrimethanil was studied on Clementine mandarins during packinghouse storage for a 28 day period at 4 C. Fruits to which orthophenylphenol was applied, were treated with imazalil and pyrimethanil at doses of 1000 and 2000 mg L1, using cascade application for the later and cascade and wax for the former. The decay of the three fungicides was evaluated using an in-house validated analytical procedure that includes the extraction and dispersive clean up of the samples followed by the GC?MS determination of the pesticide residues. The impact of fruit storage time on pesticide residues concentration was assessed. The residues
found for the different application technologies were always below the established Maximum Residue Limits by the Codex Alimentarius and the European Union (5 mg kg1 for imazalil, 7 and 8 mg kg1 for pyrimethanil, and 10 mg kg1 and 5 mg kg1 for orthophenylphenol). The fungicides dissipated differentially.
Pyrimethanil showed little degradation, if any, at both tested concentrations, but the half-life of imazalil on the fruit was 15?18 days, independent of the application technology. Orthophenylphenol dissipated with a half-life of 15 days. The initial imazalil residue found after cascade treatment was not significantly different between the doses studied (p < 0.5), whereas when the fungicide was included in wax as an emulsifiable concentrate the initial and final imazali... Presentar Todo |
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Palabras claves : |
Degradation; Postharvest fungicides. |
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Thesagro : |
CITRUS; FUNGICIDAS; TECNICA POSTCOSECHA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02850naa a2200277 a 4500
001 1053857
005 2019-10-09
008 2015 bl uuuu u00u1 u #d
022 $a0308-8146
024 7 $a10.1016/j.foodchem.2015.08.111$2DOI
100 1 $aBESIL, N.
245 $aDegradation of imazalil, orthophenylphenol and pyrimethanil in Clementine mandarins under conventional postharvest industrial conditions at 4 °C.
260 $c2015
500 $aArticle history: Received 16 April 2015 / Received in revised form 25 August 2015 / Accepted 25 August 2015 / Available online 29 August 2015. Chemical compounds studied in this article: Imazalil (PubChem CID: 37175) / Orthophenylphenol (PubChem CID: 7017) / Pyrimethanil (PubChem CID: 91650).
520 $aABSTRACT. The degradation of the postharvest fungicides imazalil, orthophenylphenol, and pyrimethanil was studied on Clementine mandarins during packinghouse storage for a 28 day period at 4 C. Fruits to which orthophenylphenol was applied, were treated with imazalil and pyrimethanil at doses of 1000 and 2000 mg L1, using cascade application for the later and cascade and wax for the former. The decay of the three fungicides was evaluated using an in-house validated analytical procedure that includes the extraction and dispersive clean up of the samples followed by the GC?MS determination of the pesticide residues. The impact of fruit storage time on pesticide residues concentration was assessed. The residues found for the different application technologies were always below the established Maximum Residue Limits by the Codex Alimentarius and the European Union (5 mg kg1 for imazalil, 7 and 8 mg kg1 for pyrimethanil, and 10 mg kg1 and 5 mg kg1 for orthophenylphenol). The fungicides dissipated differentially. Pyrimethanil showed little degradation, if any, at both tested concentrations, but the half-life of imazalil on the fruit was 15?18 days, independent of the application technology. Orthophenylphenol dissipated with a half-life of 15 days. The initial imazalil residue found after cascade treatment was not significantly different between the doses studied (p < 0.5), whereas when the fungicide was included in wax as an emulsifiable concentrate the initial and final imazalil residues were significantly different. Final residue levels after 28 days of storage were 0.12?0.24 mg kg1 for imazalil, 0.68 mg kg1 for 2-phenylphenol and 0.56 mg kg1 for pyrimethanil for all the evaluated treatments. 2015 Elsevier Ltd. All rights reserved.
650 $aCITRUS
650 $aFUNGICIDAS
650 $aTECNICA POSTCOSECHA
653 $aDegradation
653 $aPostharvest fungicides
700 1 $aPÉREZ-PARADA, A.
700 1 $aCESIO, V.
700 1 $aVARELA, P.
700 1 $aRIVAS, F.
700 1 $aHEINZEN, H.
773 $tFood Chemistry, 2016$gv.194, p. 1132-1137.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha actual : |
16/12/2016 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
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Autor : |
LIZARRALDE, C.; BAETHGEN, W.; PÉREZ BIDEGAIN, M.; REBUFFO, M.; RUBIO, V.; SAWCHIK, J. |
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Afiliación : |
CAROLINA ANGELA LIZARRALDE PIQUET, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER E. BAETHGEN, Universidad de Columbia/ IRI (International Research Institute for Climate and Society), USA; MARIO PÉREZ BIDEGAIN, DEPARTAMENTO DE SUELOS Y AGUAS, FACULTAD DE AGRONOMIA, UNIVERSIDAD DE LA REPÚBLICA, URUGUAY; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VALENTINA RUBIO DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE SAWCHIK PINTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
El tipo de laboreo realizado en el pasado tiene impacto en las propiedades del suelo en el mediano plazo? |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
Revista INIA Uruguay, 2016, no.47, p. 31-34. |
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Serie : |
(Revista INIA; 47) |
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ISSN : |
1510-9011 |
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Idioma : |
Español |
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Contenido : |
La erosión es la pérdida del material de suelo en un lugar concreto del paisaje. En Uruguay, dicho material es transportado predominantemente por el agua y en menor medida por el viento. Dos factores determinan este fenómeno: la erosión natural y la antrópica. La primera se explica básicamente por el agente erosivo de la lluvia, las características del suelo y su vegetación natural.
Los cambios ocasionados por la erosión alteran las propiedades del suelo, modificando negativamente sus propiedades físicas a través de la reducción de la infiltración
y provocando un aumento del escurrimiento. En situaciones en las que el suelo se encuentra cubierto, el impacto de la lluvia sobre la pérdida de sedimentos es menor. Tal es el caso de las situaciones en las que se realiza siembra directa (SD) donde el suelo queda cubierto por los residuos de la vegetación anterior, difiriendo de los casos de laboreo convencional
(LC). |
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Palabras claves : |
CARBONO ORGÁNICO DEL SUELO; EROSIÓN DEL SUELO; PRÁCTICAS DE MANEJO. |
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Thesagro : |
SUSTENTABILIDAD. |
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Asunto categoría : |
--
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6398/1/Rev.INIA-2016-No47-p.31-34.pdf
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Marc : |
LEADER 01670naa a2200253 a 4500
001 1056318
005 2019-10-15
008 2016 bl uuuu u00u1 u #d
022 $a1510-9011
100 1 $aLIZARRALDE, C.
245 $aEl tipo de laboreo realizado en el pasado tiene impacto en las propiedades del suelo en el mediano plazo?
260 $c2016
490 $a(Revista INIA; 47)
520 $aLa erosión es la pérdida del material de suelo en un lugar concreto del paisaje. En Uruguay, dicho material es transportado predominantemente por el agua y en menor medida por el viento. Dos factores determinan este fenómeno: la erosión natural y la antrópica. La primera se explica básicamente por el agente erosivo de la lluvia, las características del suelo y su vegetación natural. Los cambios ocasionados por la erosión alteran las propiedades del suelo, modificando negativamente sus propiedades físicas a través de la reducción de la infiltración y provocando un aumento del escurrimiento. En situaciones en las que el suelo se encuentra cubierto, el impacto de la lluvia sobre la pérdida de sedimentos es menor. Tal es el caso de las situaciones en las que se realiza siembra directa (SD) donde el suelo queda cubierto por los residuos de la vegetación anterior, difiriendo de los casos de laboreo convencional (LC).
650 $aSUSTENTABILIDAD
653 $aCARBONO ORGÁNICO DEL SUELO
653 $aEROSIÓN DEL SUELO
653 $aPRÁCTICAS DE MANEJO
700 1 $aBAETHGEN, W.
700 1 $aPÉREZ BIDEGAIN, M.
700 1 $aREBUFFO, M.
700 1 $aRUBIO, V.
700 1 $aSAWCHIK, J.
773 $tRevista INIA Uruguay, 2016, no.47, p. 31-34.
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