Journal
CYTA-JOURNAL OF FOOD
Volume 11, Issue 2, Pages 190-197Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19476337.2012.722565
Keywords
chitosan; derivatives; viscosity; surface tension; quitosano; derivados; viscosidad; tension superficial
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Funding
- Ministerio de Ciencia e Innovacion [CTQ2010-18077]
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The present work analyses different chitosan synthesized derivatives from the point of view of their chemical structure (Fourier transform infrared spectroscopy, deacetylation degree, elemental analysis and average molecular weight) as well as different physicochemical properties such as density, kinematic and dynamic viscosity, intrinsic viscosity and surface tension. The characterization of different solutions of these solutes has a high importance due to the large potential uses of these compounds. Chitosan has low solubility in water, and for this reason, the present work has synthesized soluble chitosan derivatives. Important differences between original chitosan and synthesized derivatives have been found in different properties. El presente trabajo analiza distintos derivados sintetizados del quitosano desde el punto de vista de su estructura quimica (FTIR, grado de desacetilacion, analisis elemental y peso molecular medio), asi como de distintas propiedades fisico-quimica como son la densidad, viscosidad cinematica y dinamica, viscosidad intrinseca y tension superficial. La caracterizacion de las disoluciones acuosas de estos solutos tiene una elevada importancia debido al gran potencial en el uso de estos compuestos. El quitosano tiene una baja solubilidad en agua y por este motivo este trabajo ha sintetizado derivados solubles de quitosano. Se han encontrado diferencias importantes en algunas propiedades entre los resultados experimentales correspondientes al quitosano y a sus derivados.
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