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Adriana Inés RODRIGUEZ-HERNANDEZ ; Gonzalo VELAZQUEZ ;Ciência e Tecnologia de Alimentos 2017, 37 1

Autor: Rocio Yaneli AGUIRRE-LOREDO

Fuente: http://www.redalyc.org/articulo.oa?id=395949992018


Introducción



Ciência e Tecnologia de Alimentos ISSN: 0101-2061 revista@sbcta.org.br Sociedade Brasileira de Ciência e Tecnologia de Alimentos Brasil AGUIRRE-LOREDO, Rocio Yaneli; RODRIGUEZ-HERNANDEZ, Adriana Inés; VELAZQUEZ, Gonzalo Modelling the effect of temperature on the water sorption isotherms of chitosan films Ciência e Tecnologia de Alimentos, vol.
37, núm.
1, enero-marzo, 2017, pp.
112-118 Sociedade Brasileira de Ciência e Tecnologia de Alimentos Campinas, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=395949992018 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative a ISSN 0101-2061 Food Science and Technology DDOI: http:--dx.doi.org-10.1590-1678-457X.09416 Modelling the effect of temperature on the water sorption isotherms of chitosan films Rocio Yaneli AGUIRRE-LOREDO1, Adriana Inés RODRIGUEZ-HERNANDEZ2, Gonzalo VELAZQUEZ1* Abstract The interaction of the water molecules from the environment with foods and other materials can be evaluated using sorption isotherms.
Films and biodegradable films are susceptible to changes in their functional characteristics due to adsorbed water. The amount of moisture that biodegradable films can adsorb depends on the temperature, relative humidity of the storage area and chemical composition.
Several mathematical models can be used to describe the behavior of sorption isotherms in biodegradable films and some of them have been modified to include the temperature parameter into the equation.
In this research, the original and modified BET, GAB, Halsey, Henderson and Oswin models were assessed to determine their suitability describing the behavior of moisture adsorption isotherms of chitosan films at 15, 20, 25 and 30 °C.
The modified models of GAB, Oswin and Halsey gave the best ...





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