Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization

Physico-chemical and rheological characterization of the gum extracted from the endosperm of vinal (Prosopis ruscifolia) seeds was performed. The CG-MS analysis revealed that vinal gum is a galactomannan with a mannose/galactose ratio of 1.6, with traces of arabinose and glucose residues. The struct...

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Detalles Bibliográficos
Autores principales: Kolender, Adriana Andrea, Santagapita, Patricio Román, Buera, María del Pilar
Publicado: 2015
Materias:
Guar gum
Hydrocolloids
Non-traditional sources
Prosopis
Rheology
Thickener agent
Cyamopsis tetragonoloba
Prosopis ruscifolia
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0268005X_v51_n_p495_Busch
http://hdl.handle.net/20.500.12110/paper_0268005X_v51_n_p495_Busch
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0268005X_v51_n_p495_Busch
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spelling paper:paper_0268005X_v51_n_p495_Busch2023-06-08T15:23:58Z Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization Kolender, Adriana Andrea Santagapita, Patricio Román Buera, María del Pilar Guar gum Hydrocolloids Non-traditional sources Prosopis Rheology Thickener agent Cyamopsis tetragonoloba Prosopis Prosopis ruscifolia Physico-chemical and rheological characterization of the gum extracted from the endosperm of vinal (Prosopis ruscifolia) seeds was performed. The CG-MS analysis revealed that vinal gum is a galactomannan with a mannose/galactose ratio of 1.6, with traces of arabinose and glucose residues. The structure was further confirmed by 13C NMR which showed several similarities between vinal gum and guar gum spectra. The viscosity molecular weight was 1.43±0.04·106Da (obtained from Huggins plot) and the average number molecular weight was 0.7·105Da. Shear continuous rheology studies showed a shear thinning behavior at concentrations higher than 0.04% (w/v) of vinal gum and an apparent viscosity slightly lower than that of guar gum at the same concentration. Mechanical spectra revealed that vinal gum has a typical macromolecular solution behavior with the moduli crossing point that characterized semi-diluted (0.16-0.3% w/v) gum solutions. The present work provides structural, physicochemical and rheological information of a new galactomannan from an abundant and available non-traditional source, being a starting point for food, pharmaceutical or other industrial potential applications of vinal gum. © 2015 Elsevier Ltd. Fil:Kolender, A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Santagapita, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Buera, M.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0268005X_v51_n_p495_Busch http://hdl.handle.net/20.500.12110/paper_0268005X_v51_n_p495_Busch
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Guar gum
Hydrocolloids
Non-traditional sources
Prosopis
Rheology
Thickener agent
Cyamopsis tetragonoloba
Prosopis
Prosopis ruscifolia
spellingShingle Guar gum
Hydrocolloids
Non-traditional sources
Prosopis
Rheology
Thickener agent
Cyamopsis tetragonoloba
Prosopis
Prosopis ruscifolia
Kolender, Adriana Andrea
Santagapita, Patricio Román
Buera, María del Pilar
Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
topic_facet Guar gum
Hydrocolloids
Non-traditional sources
Prosopis
Rheology
Thickener agent
Cyamopsis tetragonoloba
Prosopis
Prosopis ruscifolia
description Physico-chemical and rheological characterization of the gum extracted from the endosperm of vinal (Prosopis ruscifolia) seeds was performed. The CG-MS analysis revealed that vinal gum is a galactomannan with a mannose/galactose ratio of 1.6, with traces of arabinose and glucose residues. The structure was further confirmed by 13C NMR which showed several similarities between vinal gum and guar gum spectra. The viscosity molecular weight was 1.43±0.04·106Da (obtained from Huggins plot) and the average number molecular weight was 0.7·105Da. Shear continuous rheology studies showed a shear thinning behavior at concentrations higher than 0.04% (w/v) of vinal gum and an apparent viscosity slightly lower than that of guar gum at the same concentration. Mechanical spectra revealed that vinal gum has a typical macromolecular solution behavior with the moduli crossing point that characterized semi-diluted (0.16-0.3% w/v) gum solutions. The present work provides structural, physicochemical and rheological information of a new galactomannan from an abundant and available non-traditional source, being a starting point for food, pharmaceutical or other industrial potential applications of vinal gum. © 2015 Elsevier Ltd.
author Kolender, Adriana Andrea
Santagapita, Patricio Román
Buera, María del Pilar
author_facet Kolender, Adriana Andrea
Santagapita, Patricio Román
Buera, María del Pilar
author_sort Kolender, Adriana Andrea
title Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
title_short Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
title_full Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
title_fullStr Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
title_full_unstemmed Vinal gum, a galactomannan from Prosopis ruscifolia seeds: Physicochemical characterization
title_sort vinal gum, a galactomannan from prosopis ruscifolia seeds: physicochemical characterization
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0268005X_v51_n_p495_Busch
http://hdl.handle.net/20.500.12110/paper_0268005X_v51_n_p495_Busch
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AT santagapitapatricioroman vinalgumagalactomannanfromprosopisruscifoliaseedsphysicochemicalcharacterization
AT bueramariadelpilar vinalgumagalactomannanfromprosopisruscifoliaseedsphysicochemicalcharacterization
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