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| 3. |  | ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. Sub-fertility in beef cattle: follicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster]. ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. p. 44 Modalidad: poster.| Biblioteca(s): INIA Tacuarembó. |
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| 4. | | ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. Sub-fertility in beef cattle: follicle dynamics and progesterone concentrations during the estrus cycle In: Juengel, J.L.; Miyamoto, A.; Price, C.; Reynolds, L.P.; Smith, M.F.; Webb, R.; eds. Proceedings of the International Symposium on Reproduction in Dometic Ruminants, 9., Obihiro, Hokkaido, Japan, Agosto 2014 621 p.| Biblioteca(s): INIA Tacuarembó. |
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| 5. | | ARCE, O.; ROBINET, H.A.; MANSILLA DE ANDRADA, N.; DÍAZ, B.E.; GUILLÉN, S. Determinación de pérdidas en cultivo de soja (Glicyne max L. Merr.) por competencia con saetilla (Bidens subalternans D.C. y Bidens pilosa L.) en el noreste de la Provincia de Tucumán, Argentina In: ASOCIACIÓN LATINOAMERICANA DE MALEZAS. CONGRESO LATINOAMERICANO DE MALEZAS, 12. 21-23 MARZO 1995, MONTEVIDEO (URY). RÍOS, A.; FERNÁNDEZ, G. (EDS.). Conferencias y trabajos. Montevideo: INIA, 1995. p. 216-220 (INIA Serie Técnica ; 56) Congreso declarado de interés nacional (decreto del Poder Ejecutivo octubre/1994)| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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| 6. | | CRESPI, D.; LA MANNA, A.; MENDOZA, A.; GUILLÉN, S.; MISA, C.; SEPÚLVEDA, P.; CAVESTANY, D. Efecto de la semilla de girasol y la condición corporal sobre la producción y reproducción de vacas lecheras. In: CONGRESO ARGENTINO DE PRODUCCIÓN ANIMAL, 32. 2009. Resúmenes. Malargüe, Mendoza, AR: AAPA, 2009. Revista Argentina de Producción Animal, v. 29, supl.1, p. 52-53, 2009.| Biblioteca(s): INIA La Estanzuela. |
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| 7. | | DE ANDRADA, N.; ROBINET, H.; ARCE, O.; DÍAZ, B.; GUILLEN, S.; MANSILLA, N.; GALLO, E. Relevamiento y determinación de la distribución de malezas frecuentes en la zona sojera del noreste de Tucumán, República Argentina In: ASOCIACIÓN LATINOAMERICANA DE MALEZAS. CONGRESO LATINOAMERICANO DE MALEZAS, 12. 21-23 MARZO 1995, MONTEVIDEO (URY). RÍOS, A.; FERNÁNDEZ, G. (EDS.). Conferencias y trabajos. Montevideo: INIA, 1995. p. 50-60 (INIA Serie Técnica ; 56) Congreso declarado de interés nacional (decreto del Poder Ejecutivo octubre/1994)| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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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 : |
05/02/2018 |
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Actualizado : |
02/06/2020 |
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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 : |
VILARÓ, P.; BENNADJI, Z.; BUDELLI, E.; MOYNA, G.; PANIZZOLO, L.; FERREIRA, F. |
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Afiliación : |
PILAR VILARÓ, Universidad de la República (UdelaR)/ Polo de Desarrollo Universitario de Química.; ZOHRA BENNADJI SOUALHIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELIANA BUDELLI, Universidad de la República (UdelaR).; GUILLERMO MOYNA, Laboratorio de Fisicoquímica Org#1;anica, Departamento de Química del Litoral, CENUR Litoral Norte, UdelaR.; LUIS PANIZZOLO, Universidad de la República (UdelaR).; FERNANDO AMAURY FERREIRA CHIESA, Centro Universitario de Tacuarembó, UdelaR. Laboratorio de Carbohidratos y Glicoconjugados, Departamento de Química Orgánica, Facultad de Química, UdelaR. |
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Título : |
Isolation and characterization of galactomannans from Prosopis affinis as potential gum substitutes. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Food Hydrocolloids, Volume 77, April 2018, Pages 711-719. DOI: https://doi.org/10.1016/j.foodhyd.2017.10.038 |
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DOI : |
10.1016/j.foodhyd.2017.10.038 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 1 September 2017//Received in revised form 30 October 2017//Accepted 31 October 2017//Available online 10 November 2017. Acknowledgements: We thank Guillermo de Souza for the usage of the laboratory, Pilar Menendez and Luis Reina for their assistance with the HPLC and GC-MS experiments, Demian Gomez for the seed photographs, and María Ines Bessio for her comments and suggestions on the SEC/MALLS-QUELS/RI experiments. |
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Contenido : |
Galactomannans from the endosperm of mature seeds of Prosopis affinis were isolated following different extraction procedures in yields of up to 64%. The polysaccharides were characterized by HPLC, GC-MS, and NMR spectroscopy, and their physicochemical properties were studied by SEC/MALLS-QUELS/RI
and rheological methods. The monosaccharide composition of the extracted galactomannans showed only mannose and galactose in a ~1.5 ratio, similar to galactomannans found in guar gum and obtained from other Prosopis species. The structural characterization showed that these polysaccharides are composed by a b-(1/4)-linked mannose backbone with galactopyranosyl residues attached through a (1/6) linkages. The weight-average molecular weight (Mw) of the P. affinis galactomannans went from (1.6 ± 0.2) x 106 to (1.8 ± 0.1) x 106 g/mol, and the intrinsic viscosity, in the 9.9 to 10.7 dL/g range, was comparable to that reported for other extracts from the Prosopis genre. Although the molecular weight distribution and intrinsic viscosity were dependent on the extraction procedure, the mannose-togalactose ratio was almost invariant. Conformation plots showed that the polymer extracted at higher temperatures is more cohesive, a characteristic that could be attributed to a greater number of polymerpolymer interactions. Our findings show that the P. affinis galactomannan has nearly monomodal molecular weight distribution, functional properties similar to those of guar gum, and can be isolated from an abundant and readily available non-traditional source. It therefore represents a promising new biomaterial for the food and pharmaceutical industries that can be produced from the regional native flora in a sustainable way. MenosGalactomannans from the endosperm of mature seeds of Prosopis affinis were isolated following different extraction procedures in yields of up to 64%. The polysaccharides were characterized by HPLC, GC-MS, and NMR spectroscopy, and their physicochemical properties were studied by SEC/MALLS-QUELS/RI
and rheological methods. The monosaccharide composition of the extracted galactomannans showed only mannose and galactose in a ~1.5 ratio, similar to galactomannans found in guar gum and obtained from other Prosopis species. The structural characterization showed that these polysaccharides are composed by a b-(1/4)-linked mannose backbone with galactopyranosyl residues attached through a (1/6) linkages. The weight-average molecular weight (Mw) of the P. affinis galactomannans went from (1.6 ± 0.2) x 106 to (1.8 ± 0.1) x 106 g/mol, and the intrinsic viscosity, in the 9.9 to 10.7 dL/g range, was comparable to that reported for other extracts from the Prosopis genre. Although the molecular weight distribution and intrinsic viscosity were dependent on the extraction procedure, the mannose-togalactose ratio was almost invariant. Conformation plots showed that the polymer extracted at higher temperatures is more cohesive, a characteristic that could be attributed to a greater number of polymerpolymer interactions. Our findings show that the P. affinis galactomannan has nearly monomodal molecular weight distribution, functional properties similar to those of guar gum, and can be isolated ... Presentar Todo |
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Palabras claves : |
CHEMICAL STRUCTURE; ENDOSPERM; EXTRACTION YIELD; GALACTOMANNAN; INTRINSIC VISCOSITY; MOLECULAR WEIGHT DISTRIBUTION. |
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Thesagro : |
PROSOPIS AFFINIS. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 03081naa a2200289 a 4500
001 1058025
005 2020-06-02
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foodhyd.2017.10.038$2DOI
100 1 $aVILARÓ, P.
245 $aIsolation and characterization of galactomannans from Prosopis affinis as potential gum substitutes.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 1 September 2017//Received in revised form 30 October 2017//Accepted 31 October 2017//Available online 10 November 2017. Acknowledgements: We thank Guillermo de Souza for the usage of the laboratory, Pilar Menendez and Luis Reina for their assistance with the HPLC and GC-MS experiments, Demian Gomez for the seed photographs, and María Ines Bessio for her comments and suggestions on the SEC/MALLS-QUELS/RI experiments.
520 $aGalactomannans from the endosperm of mature seeds of Prosopis affinis were isolated following different extraction procedures in yields of up to 64%. The polysaccharides were characterized by HPLC, GC-MS, and NMR spectroscopy, and their physicochemical properties were studied by SEC/MALLS-QUELS/RI and rheological methods. The monosaccharide composition of the extracted galactomannans showed only mannose and galactose in a ~1.5 ratio, similar to galactomannans found in guar gum and obtained from other Prosopis species. The structural characterization showed that these polysaccharides are composed by a b-(1/4)-linked mannose backbone with galactopyranosyl residues attached through a (1/6) linkages. The weight-average molecular weight (Mw) of the P. affinis galactomannans went from (1.6 ± 0.2) x 106 to (1.8 ± 0.1) x 106 g/mol, and the intrinsic viscosity, in the 9.9 to 10.7 dL/g range, was comparable to that reported for other extracts from the Prosopis genre. Although the molecular weight distribution and intrinsic viscosity were dependent on the extraction procedure, the mannose-togalactose ratio was almost invariant. Conformation plots showed that the polymer extracted at higher temperatures is more cohesive, a characteristic that could be attributed to a greater number of polymerpolymer interactions. Our findings show that the P. affinis galactomannan has nearly monomodal molecular weight distribution, functional properties similar to those of guar gum, and can be isolated from an abundant and readily available non-traditional source. It therefore represents a promising new biomaterial for the food and pharmaceutical industries that can be produced from the regional native flora in a sustainable way.
650 $aPROSOPIS AFFINIS
653 $aCHEMICAL STRUCTURE
653 $aENDOSPERM
653 $aEXTRACTION YIELD
653 $aGALACTOMANNAN
653 $aINTRINSIC VISCOSITY
653 $aMOLECULAR WEIGHT DISTRIBUTION
700 1 $aBENNADJI, Z.
700 1 $aBUDELLI, E.
700 1 $aMOYNA, G.
700 1 $aPANIZZOLO, L.
700 1 $aFERREIRA, F.
773 $tFood Hydrocolloids, Volume 77, April 2018, Pages 711-719. DOI: https://doi.org/10.1016/j.foodhyd.2017.10.038
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