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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
24/10/2019 |
Actualizado : |
07/11/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
INIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA).; PROGRAMA NACIONAL PASTURAS Y FORRAJES.; PROGRAMA NACIONAL PRODUCCIÓN DE CARNE Y LANA. |
Afiliación : |
PROGRAMA NACIONAL DE INVESTIGACIÓN PASTURAS Y FORRAJES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PROGRAMA NACIONAL DE INVESTIGACIÓN PRODUCCIÓN DE CARNE Y LANA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Día de campo. [Trabajos presentados]. |
Complemento del título : |
DÍA DE CAMPO, 2019, UNIDAD EXPERIMENTAL PALO A PIQUE, TREINTA Y TRES, UY. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Treinta y Tres (UY): INIA, 2019. |
Páginas : |
29 p. |
Idioma : |
Español |
Palabras claves : |
MODULO DE PRODUCCIÓN INTENSIVA OVINA; RECRIA VACUNA; SOMBRA. |
Thesagro : |
CARNE VACUNA; CLIMA; PRODUCCIÓN INTENSIVA; SISTEMAS PASTURAS-CULTIVOS. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13568/1/2019-DC-UEPP-OCTUBRE.pdf
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Marc : |
LEADER 00701nam a2200217 a 4500 001 1060341 005 2019-11-07 008 2019 bl uuuu u0uu1 u #d 100 1 $aINIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA). 245 $aDía de campo. [Trabajos presentados].$h[electronic resource] 260 $aTreinta y Tres (UY): INIA$c2019 300 $a29 p. 650 $aCARNE VACUNA 650 $aCLIMA 650 $aPRODUCCIÓN INTENSIVA 650 $aSISTEMAS PASTURAS-CULTIVOS 653 $aMODULO DE PRODUCCIÓN INTENSIVA OVINA 653 $aRECRIA VACUNA 653 $aSOMBRA 700 1 $aPROGRAMA NACIONAL PASTURAS Y FORRAJES. 700 1 $aPROGRAMA NACIONAL PRODUCCIÓN DE CARNE Y LANA.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
11/01/2021 |
Actualizado : |
18/03/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
-- - -- |
Autor : |
PEREIRA, M.; TISSOT, F.; FACCIO, R.; IBÁÑEZ, F.; PISTÓN, M. |
Afiliación : |
MÓNICA PEREIRA, Universidad de la República, Facultad de Química, Montevideo, Uruguay.Grupo de Análisis de Elementos Traza y Desarrollo de Estrategias Simples para Preparación de Muestras (GATPREM).; FLORENCIA TISSOT, Universidad de la República, Facultad de Química, Montevideo, Uruguay.Grupo de Análisis de Elementos Traza y Desarrollo de Estrategias Simples para Preparación de Muestras (GATPREM).; RICARDO FACCIO, Universidad de la República, Montevideo, Uruguay. Facultad de Química. Área Física and Centro NanoMat.; FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIELA PISTÓN, Universidad de la República, Facultad de Química, Montevideo, Uruguay.Grupo de Análisis de Elementos Traza y Desarrollo de Estrategias Simples para Preparación de Muestras (GATPREM). |
Título : |
A simple and economical ultrasound-assisted method for Cd and Pb extraction from fruits and vegetables for food safety assurance. [Open Access]. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Results in Chemistry, Volume 3, Number 100089 2021, Doi: https://doi.org/10.1016/j.rechem.2020.100089 |
DOI : |
10.1016/j.rechem.2020.100089 |
Idioma : |
Inglés |
Notas : |
Article history: Received 12 October 2020 / Accepted 16 December 2020 /
Corresponding author: mpiston@fq.edu.uy |
Contenido : |
Ultrasound-assisted extraction (UAE) methods for food analysis are recognized as being in accordance with the principles of green analytical chemistry (GAC). Reference standard methods generally use microwave-assisted extraction (MAE) for sample digestion; however, the use of ultrasonication processes has many advantages. Herein, a simple, and economical method for the determination of Cd and Pb in fruits and vegetables for food safety monitoring is reported. This method was optimized using a standard reference material (SRM, spinach leaves) through a multivariate experimental design (optimal conditions: 0.5 g of sample, 15 min of sonication, and 20.00 mL of 2.5 mol L−1 HNO3) and subsequently validated. The limits of detection obtained were one or two orders of magnitude lower than those achieved with MAE, making this a promising technique for contaminants monitoring. The UAE method was then tested on vegetable samples (apples, carrots, tomatoes, and lettuce) obtained from commercial sources in Uruguay and a comparison was made with samples treated by MAE. Both processes yielded comparable results, and the levels of Cd and Pb in all samples were below the maximum allowed concentration (MAC) established by the World Health Organization (WHO). In addition, to provide insight into the mechanism by which the ultrasonic process aids extraction, confocal optical images of the surface of the SRM were obtained. The leaves were examined after treatment at different sonication times (5?20 min). The confocal microscopy images show the effects of the ultrasonic treatment on the plant tissue, including desaturation, erosion, and abrasion, which increased with increasing sonication time. In conclusion, the UAE method meets and overcome the requirements of a standard method for food safety assurance. MenosUltrasound-assisted extraction (UAE) methods for food analysis are recognized as being in accordance with the principles of green analytical chemistry (GAC). Reference standard methods generally use microwave-assisted extraction (MAE) for sample digestion; however, the use of ultrasonication processes has many advantages. Herein, a simple, and economical method for the determination of Cd and Pb in fruits and vegetables for food safety monitoring is reported. This method was optimized using a standard reference material (SRM, spinach leaves) through a multivariate experimental design (optimal conditions: 0.5 g of sample, 15 min of sonication, and 20.00 mL of 2.5 mol L−1 HNO3) and subsequently validated. The limits of detection obtained were one or two orders of magnitude lower than those achieved with MAE, making this a promising technique for contaminants monitoring. The UAE method was then tested on vegetable samples (apples, carrots, tomatoes, and lettuce) obtained from commercial sources in Uruguay and a comparison was made with samples treated by MAE. Both processes yielded comparable results, and the levels of Cd and Pb in all samples were below the maximum allowed concentration (MAC) established by the World Health Organization (WHO). In addition, to provide insight into the mechanism by which the ultrasonic process aids extraction, confocal optical images of the surface of the SRM were obtained. The leaves were examined after treatment at different sonication t... Presentar Todo |
Palabras claves : |
CONFOCAL OPTICAL MICROSCOPY; FOOD SAFETY; PLATAFORMA AGROALIMENTOS. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/14924/1/Results-in-Chemistry-2021-3-10089.pdf
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Marc : |
LEADER 02714naa a2200229 a 4500 001 1061662 005 2022-03-18 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1016/j.rechem.2020.100089$2DOI 100 1 $aPEREIRA, M. 245 $aA simple and economical ultrasound-assisted method for Cd and Pb extraction from fruits and vegetables for food safety assurance. [Open Access].$h[electronic resource] 260 $c2021 500 $aArticle history: Received 12 October 2020 / Accepted 16 December 2020 / Corresponding author: mpiston@fq.edu.uy 520 $aUltrasound-assisted extraction (UAE) methods for food analysis are recognized as being in accordance with the principles of green analytical chemistry (GAC). Reference standard methods generally use microwave-assisted extraction (MAE) for sample digestion; however, the use of ultrasonication processes has many advantages. Herein, a simple, and economical method for the determination of Cd and Pb in fruits and vegetables for food safety monitoring is reported. This method was optimized using a standard reference material (SRM, spinach leaves) through a multivariate experimental design (optimal conditions: 0.5 g of sample, 15 min of sonication, and 20.00 mL of 2.5 mol L−1 HNO3) and subsequently validated. The limits of detection obtained were one or two orders of magnitude lower than those achieved with MAE, making this a promising technique for contaminants monitoring. The UAE method was then tested on vegetable samples (apples, carrots, tomatoes, and lettuce) obtained from commercial sources in Uruguay and a comparison was made with samples treated by MAE. Both processes yielded comparable results, and the levels of Cd and Pb in all samples were below the maximum allowed concentration (MAC) established by the World Health Organization (WHO). In addition, to provide insight into the mechanism by which the ultrasonic process aids extraction, confocal optical images of the surface of the SRM were obtained. The leaves were examined after treatment at different sonication times (5?20 min). The confocal microscopy images show the effects of the ultrasonic treatment on the plant tissue, including desaturation, erosion, and abrasion, which increased with increasing sonication time. In conclusion, the UAE method meets and overcome the requirements of a standard method for food safety assurance. 653 $aCONFOCAL OPTICAL MICROSCOPY 653 $aFOOD SAFETY 653 $aPLATAFORMA AGROALIMENTOS 700 1 $aTISSOT, F. 700 1 $aFACCIO, R. 700 1 $aIBÁÑEZ, F. 700 1 $aPISTÓN, M. 773 $tResults in Chemistry, Volume 3, Number 100089 2021, Doi: https://doi.org/10.1016/j.rechem.2020.100089
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