Interaction of mesquite gum-chitosan at the interface and its influences on the stability of multiple emulsions w1/O/W2 [Interacción goma de mezquite-quitosano en la interfase y su influencia en la estabilidad de emulsiones múltiplesw1/O/W
Por:
Pérez-Orozco J.P., Barrios-Salgado E., Róman-Guerrero A., Pedroza-Islas R.
Publicada:
1 ene 2011
Categoría:
Chemical Engineering (miscellaneous)
Resumen:
In this work, the effect of interaction between mesquite gum (GM) and chitosan (Q) on the interfacial properties of adsorbed layer in the water-Canola oil interface, and their influence in the rheological properties, structure and stability of emulsions oil-in-water (O/W) and water-in-oil-in-water (W1/O/W2), were studied. The interfacial results showed that there is an associative (electrostatic) interaction between both macromolecules at the pH 3.8, influenced by the biopolymer concentration ratio and oil phase characteristic. The interfacial apparent viscosity and the interfacial creep-compliance properties of adsorbed layer were increases when using 10%GM-0.4%Q. The electrostatic complex (10%GM-0.4%Q) gave the minor coalescence kinetics and their rheological properties exhibited a mayor elastic character with little dependence regarding the aging time of emulsion O/W, and provided greater stability for the multiple system W1/O/W2.
Filiaciones:
Instituto Tecnológico de Zacatepec, Departamento de Ingeniería Química y Bioquímica, Calzada Tecnológico No. 27, Col. Centro, Zacatepec, Morelos 62780, Mexico
Universidad Autónoma Metropolitana-Iztapalapa, Departamento de Biotecnología, San Rafael Atlixco 186, Vicentina, México DF 09340, Mexico
Universidad Iberoamericana, Departamento de Ingeniería y Ciencias Químicas, Prolongación Reforma 880, Lomas de Santa Fe, México DF 01210, Mexico
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