Polyelectrolyte complexes of polysaccharides with gelatin

International Conference and Exhibition on Materials Chemistry

March 31-April 01, 2016 Valencia, Spain

Nina Sokolan, Nikolay Voron�ko, Julia Kuchina and Svetlana Derkach

Murmansk State Technical University, Russia

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Polysaccharides are among the polymers that make up the fundamental components of life and constitute a major proportion of the Earth�s biomass. Polyelectrolyte complexes (PEC) of polysaccharides (which are responsible for the steric factor of stabilization and increase in viscosity of a continuous phase) with gelatin (which provides the high rate of adsorption) are currently considered as the most perspective stabilizers of the dispersed systems in particular in food industry. A cationic polysaccharide chitosan is widely used as a "matrix" for the formation of (bio)polyelectrolyte complexes due to the attractiveness of its properties such as biocompatibility, biodegradability, low toxicity and relatively low manufacturing cost, due to the existence of rich natural sources of polysaccharide. Macromolecules of chitosan have a high density of positive charge in the acidic environment due to ionization of the free amino groups. Therefore, self-assembly of (bio)PEC occurs in acidic solutions of chitosan in the presence of the negatively charged polyelectrolyte. Gelatin is the product of collagen destructiony and has been widely used as a fundamental material for microspheres, sealants, tissue adhesives and carriers for controlled delivery systems. Gelatin has also been widely used in combination with other polymers for encapsulation.

Biography :

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