Artículo
Formulation and characterization of hydrogel based on pectin and brea gum
Fecha de publicación:
02/2019
Editorial:
Elsevier Science
Revista:
International Journal of Biological Macromolecules
ISSN:
0141-8130
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A hydrogel is a three-dimensional network formed by flexible chains of polymers that absorb considerable amounts of water. The objectives of this work were to formulate hydrogels from pectin and brea gum and to study their functional properties. Brea gum solutions present positive charge below pH = 3.5. Pectin has anionic character due to uronic acids. Hydrogels were formulated from pectin and brea gum solutions. DSC and FTIR confirmed the existence of strong interaction between both polymers. Rheological and texture profiles indicated that hydrogels behaved as a strong gels. Swelling and erosion were dependent on the pH values of the medium. The release of a dye molecule from the hydrogel was controlled by a Fickian diffusion mechanism. The capability of these hydrogels to respond to the changes in pH of the medium and to modify dye release, could be valuable for medical, food and industrial uses.
Palabras clave:
DIFFUSION
,
HYDROCOLLOID
,
HYDROGEL
,
POLYELECTROLYTE COMPLEX
,
SWELLING
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Identificadores
Colecciones
Articulos(INIQUI)
Articulos de INST.DE INVEST.PARA LA INDUSTRIA QUIMICA (I)
Articulos de INST.DE INVEST.PARA LA INDUSTRIA QUIMICA (I)
Citación
Slavutsky, Anibal Marcelo; Bertuzzi, Maria Alejandra; Formulation and characterization of hydrogel based on pectin and brea gum; Elsevier Science; International Journal of Biological Macromolecules; 123; 2-2019; 784-791
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