Artículo
Vinal gum, a galactomannan from Prosopis ruscifolia seeds: physicochemical characterization
Busch, Verónica María
; Kolender, Adriana Andrea
; Santagapita, Patricio Roman
; Buera, Maria del Pilar
Fecha de publicación:
10/2015
Editorial:
Elsevier
Revista:
Food Hydrocolloids
ISSN:
0268-005X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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 galactomannanwith a mannose/galactose ratio of 1.6, with traces of arabinose and glucose residues. Thestructure was further confirmed by 13C NMR which showed several similarities between vinal gum andguar gum spectra. The viscosity molecular weight was 1.43 ± 0.04$106 Da (obtained from Huggins plot)and the average number molecular weight was 0.7$105 Da. Shear continuous rheology studies showed ashear thinning behavior at concentrations higher than 0.04% (w/v) of vinal gum and an apparent viscosityslightly lower than that of guar gum at the same concentration. Mechanical spectra revealed that vinalgum has a typical macromolecular solution behavior with the moduli crossing point that characterizedsemi-diluted (0.16e0.3% w/v) gum solutions. The present work provides structural, physicochemical andrheological 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.
Palabras clave:
Hydrocolloid
,
Guar Gum
,
Rheology
,
Thickener Agent
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CIHIDECAR)
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Busch, Verónica María; Kolender, Adriana Andrea; Santagapita, Patricio Roman; Buera, Maria del Pilar; Vinal gum, a galactomannan from Prosopis ruscifolia seeds: physicochemical characterization; Elsevier; Food Hydrocolloids; 51; 10-2015; 495-502
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