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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
30/10/2019 |
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Actualizado : |
04/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
NIELL, S.; JESÚS, F.; PÉREZ, C.; MENDOZA, Y.; DIAZ, R.; FRANCO, J.; CESIO, V.; HEINZEN, H. |
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Afiliación : |
SILVINA NIELL, Universidad de la República, CENUR Noroeste, Departamento de Química del Litoral, PAAP, Ruta 3 km 363, CP60000 Paysandú, Uruguay.; FLORENCIA JESÚS, Universidad de la República, CENUR Noroeste, Departamento de Química del Litoral, PAAP, Ruta 3 km 363, CP60000 Paysandú, Uruguay.; CECILIA PÉREZ, Universidad de la República, CENUR Noroeste, Departamento de Química del Litoral, PAAP, Ruta 3 km 363, CP60000 Paysandú, Uruguay.; YAMANDU MENDOZA SPINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROSANA DIAZ, Ministerio Ganadería Agricultura y Pesca-DIGEGRA Montevideo, Uruguay.; JORGE FRANCO, Universidad de la República, Facultad de Agronomía, EEMAC, Ruta 3 km 363, CP60000 Paysandú, Uruguay.; VERÓNICA CESIO, 5Universidad de la República, Facultad de Química, Montevideo, Gral. Flores 2124, CP11800 Montevideo, Uruguay.; HORACIO HEINZEN, Universidad de la República, CENUR Noroeste, Departamento de Química del Litoral, PAAP, Ruta 3 km 363, CP60000 Paysandú, Uruguay. |
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Título : |
QuEChERS adaptability for the analysis of pesticide residues in beehive products seeking the development of an agroecosystem sustainability monitor. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Journal of Agricultural and Food Chemistry, 13 May 2015, Volume 63, Issue 18, Pages 4484-4492. |
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DOI : |
10.1021/acs.jafc.5b00795 |
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Idioma : |
Inglés |
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Notas : |
Article history: Publication Date (Web): 16 Apr 2015 |
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Contenido : |
Abstract:
Beehive products could be powerful monitors of pesticide residues originating in agroecosystems during production cycles. Their ready availability provides enough samples to perform analytical determinations, but their chemical complexity makes residue analysis a real challenge. Taking advantage of the plasticity of QuEChERS coupled to LC-MS/MS, validated methodologies were developed for bees, honey, beeswax, and pollen and applied to real samples for the simultaneous determination of 19 of the most employed pesticides in intensive cropping fields. Beehives placed in Uruguayan agroecosystems accumulated the pesticides thiacloprid, imidacloprid, methomyl, carbaryl, hexythiazox, azoxystrobin, pyraclostrobin, tebuconazole, and haloxyfop-methyl at 0.0001?0.01 mg/kg levels. The oscillations on the amount and occurrence of residue findings for specific apiaries were correlated statistically with the sampling season and the agroecosystem where the beehives were located, showing the potential of bees and bee products to record relevant information to survey the chemicals applied in their surroundings. |
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Palabras claves : |
BEEHIVE MATRICES; ENVIRONMENTAL MONITOR; PESTICIDAS-RESIDUOS; PESTICIDE RESIDUES; QuEChERS. |
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Thesagro : |
ABEJAS; PESTICIDAS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02125naa a2200313 a 4500
001 1060365
005 2019-11-04
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1021/acs.jafc.5b00795$2DOI
100 1 $aNIELL, S.
245 $aQuEChERS adaptability for the analysis of pesticide residues in beehive products seeking the development of an agroecosystem sustainability monitor.$h[electronic resource]
260 $c2015
500 $aArticle history: Publication Date (Web): 16 Apr 2015
520 $aAbstract: Beehive products could be powerful monitors of pesticide residues originating in agroecosystems during production cycles. Their ready availability provides enough samples to perform analytical determinations, but their chemical complexity makes residue analysis a real challenge. Taking advantage of the plasticity of QuEChERS coupled to LC-MS/MS, validated methodologies were developed for bees, honey, beeswax, and pollen and applied to real samples for the simultaneous determination of 19 of the most employed pesticides in intensive cropping fields. Beehives placed in Uruguayan agroecosystems accumulated the pesticides thiacloprid, imidacloprid, methomyl, carbaryl, hexythiazox, azoxystrobin, pyraclostrobin, tebuconazole, and haloxyfop-methyl at 0.0001?0.01 mg/kg levels. The oscillations on the amount and occurrence of residue findings for specific apiaries were correlated statistically with the sampling season and the agroecosystem where the beehives were located, showing the potential of bees and bee products to record relevant information to survey the chemicals applied in their surroundings.
650 $aABEJAS
650 $aPESTICIDAS
653 $aBEEHIVE MATRICES
653 $aENVIRONMENTAL MONITOR
653 $aPESTICIDAS-RESIDUOS
653 $aPESTICIDE RESIDUES
653 $aQuEChERS
700 1 $aJESÚS, F.
700 1 $aPÉREZ, C.
700 1 $aMENDOZA, Y.
700 1 $aDIAZ, R.
700 1 $aFRANCO, J.
700 1 $aCESIO, V.
700 1 $aHEINZEN, H.
773 $tJournal of Agricultural and Food Chemistry, 13 May 2015, Volume 63, Issue 18, Pages 4484-4492.
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INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
30/05/2019 |
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Actualizado : |
04/05/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
WALLACE, F.; BENNADJI, Z.; FERREIRA, F.; OLIVARO, C. |
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Afiliación : |
FEDERICO WALLACE, Espacio de Ciencia y Tecnología Química, Centro Universitario de Tacuarembó, UdelaR, Tacuarembó, Uruguay.; ZOHRA BENNADJI SOUALHIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO AMARY FERREIRA CHIESA, Espacio de Ciencia y Tecnología Química, Centro Universitario de Tacuarembó, UdelaR, Tacuarembó, Uruguay; Laboratorio de Carbohidratos y Glicoconjugados, Departamento de Química Orgánica, Facultad de Química, Udelar, Instituto de Higiene, Uruguay.; CRISTINA OLIVARO, Espacio de Ciencia y Tecnología Química, Centro Universitario de Tacuarembó, UdelaR, Tacuarembó, Uruguay. |
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Título : |
Structural characterisation of new immunoadjuvant saponins from leaves and the first study of saponins from the bark of Quillaja brasiliensis by liquid chromatography electrospray ionisation ion trap mass spectrometry.
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Phytochemical Analysis, 1 November 2019, Volume 30, Issue 6, Pages 644-652. Doi: https://doi.org/10.1002/pca.2837 |
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DOI : |
10.1002/pca.2837 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 19 December 2018; Revised: 21 February 2019; Accepted: 27 March 2019. ACKNOWLEDGEMENTS: This work was supported by the INIA (award L4?FO?21?0?00);
the MEC (Uruguay, Fondo Vaz Ferreira fvf_2017_158) and the PEDECIBA-Química. |
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Contenido : |
Abstract. Introduction: Quillaja brasiliensis (St. A. ?Hil. & Tul) Mart (Quillajaceae) is a species native to South America, which is rich in saponins. Saponins are used in different industries, so there is a constant demand for this type of compound. Based on the wide range of applications for the saponins found in this species, notably as
immunoadjuvants, we conducted a comprehensive study of this tree and its saponins. Objective: The purpose of this work is to complete the characterisation of
the immunoadjuvant saponin fraction from Q. brasiliensis leaves and further study the saponin fraction obtained from Q. brasiliensis bark. Methodology: Saponin fractions were studied using mass spectrometry in combination with classical methods of monosaccharide and methylation analysis. We performed direct infusion and liquid chromatography/electrospray ionisation ion trap multiple?stage mass spectrometry (DI?ESI?IT?MSn and LC?ESI?IT?MS2). Results: Seventy?five saponins, 21 from leaves and 54 from bark, were tentatively identified according to their molecular mass, fragmentation pattern and chromatographic behaviour. This work represents the first investigation of saponins from the bark of Q. brasiliensis and some of them presented new structural motifs not previously reported in the genus Quillaja. Conclusion: The efficiency and selectivity of the data dependent LC?MS2 method allowed the rapid profiling of saponins from Q. brasiliensis. The results of the monosaccharide and methylation analysis performed in saponins from Q. brasiliensis fractions and Q. saponaria Molina (Quillajaceae) fraction gives further support to the structures proposed according to the mass spectral data, validating the strategy used in the present work. MenosAbstract. Introduction: Quillaja brasiliensis (St. A. ?Hil. & Tul) Mart (Quillajaceae) is a species native to South America, which is rich in saponins. Saponins are used in different industries, so there is a constant demand for this type of compound. Based on the wide range of applications for the saponins found in this species, notably as
immunoadjuvants, we conducted a comprehensive study of this tree and its saponins. Objective: The purpose of this work is to complete the characterisation of
the immunoadjuvant saponin fraction from Q. brasiliensis leaves and further study the saponin fraction obtained from Q. brasiliensis bark. Methodology: Saponin fractions were studied using mass spectrometry in combination with classical methods of monosaccharide and methylation analysis. We performed direct infusion and liquid chromatography/electrospray ionisation ion trap multiple?stage mass spectrometry (DI?ESI?IT?MSn and LC?ESI?IT?MS2). Results: Seventy?five saponins, 21 from leaves and 54 from bark, were tentatively identified according to their molecular mass, fragmentation pattern and chromatographic behaviour. This work represents the first investigation of saponins from the bark of Q. brasiliensis and some of them presented new structural motifs not previously reported in the genus Quillaja. Conclusion: The efficiency and selectivity of the data dependent LC?MS2 method allowed the rapid profiling of saponins from Q. brasiliensis. The results of the monosaccharide and methyla... Presentar Todo |
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Palabras claves : |
IMMUNOADJUVANT SAPONINS; MASS SPECTROMETRY; METHYLATION ANALYSIS; MONOSACCHARIDE ANALYIS; QUILLAJA BRASILIENSIS. |
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Asunto categoría : |
K11 Ingeniería forestal |
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Marc : |
LEADER 02910naa a2200241 a 4500
001 1059792
005 2020-05-04
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1002/pca.2837$2DOI
100 1 $aWALLACE, F.
245 $aStructural characterisation of new immunoadjuvant saponins from leaves and the first study of saponins from the bark of Quillaja brasiliensis by liquid chromatography electrospray ionisation ion trap mass spectrometry. .$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 19 December 2018; Revised: 21 February 2019; Accepted: 27 March 2019. ACKNOWLEDGEMENTS: This work was supported by the INIA (award L4?FO?21?0?00); the MEC (Uruguay, Fondo Vaz Ferreira fvf_2017_158) and the PEDECIBA-Química.
520 $aAbstract. Introduction: Quillaja brasiliensis (St. A. ?Hil. & Tul) Mart (Quillajaceae) is a species native to South America, which is rich in saponins. Saponins are used in different industries, so there is a constant demand for this type of compound. Based on the wide range of applications for the saponins found in this species, notably as immunoadjuvants, we conducted a comprehensive study of this tree and its saponins. Objective: The purpose of this work is to complete the characterisation of the immunoadjuvant saponin fraction from Q. brasiliensis leaves and further study the saponin fraction obtained from Q. brasiliensis bark. Methodology: Saponin fractions were studied using mass spectrometry in combination with classical methods of monosaccharide and methylation analysis. We performed direct infusion and liquid chromatography/electrospray ionisation ion trap multiple?stage mass spectrometry (DI?ESI?IT?MSn and LC?ESI?IT?MS2). Results: Seventy?five saponins, 21 from leaves and 54 from bark, were tentatively identified according to their molecular mass, fragmentation pattern and chromatographic behaviour. This work represents the first investigation of saponins from the bark of Q. brasiliensis and some of them presented new structural motifs not previously reported in the genus Quillaja. Conclusion: The efficiency and selectivity of the data dependent LC?MS2 method allowed the rapid profiling of saponins from Q. brasiliensis. The results of the monosaccharide and methylation analysis performed in saponins from Q. brasiliensis fractions and Q. saponaria Molina (Quillajaceae) fraction gives further support to the structures proposed according to the mass spectral data, validating the strategy used in the present work.
653 $aIMMUNOADJUVANT SAPONINS
653 $aMASS SPECTROMETRY
653 $aMETHYLATION ANALYSIS
653 $aMONOSACCHARIDE ANALYIS
653 $aQUILLAJA BRASILIENSIS
700 1 $aBENNADJI, Z.
700 1 $aFERREIRA, F.
700 1 $aOLIVARO, C.
773 $tPhytochemical Analysis, 1 November 2019, Volume 30, Issue 6, Pages 644-652. Doi: https://doi.org/10.1002/pca.2837
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