Polytechnic University of Valencia Congress, 21st International Drying Symposium

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The effect of drying on the mechanical properties and structure of biodegradable films
Gabriela Silveira da Rosa, Sai Vanga, Yvan Gariepy, Vijaya Raghavan

Last modified: 02-01-2019


The aim of this study was to investigate the effect of convective and vacuum drying on properties of biodegradable films. The film-forming solutions were prepared with bovine gelatin and carrageenan. The films solutions were dried in convective and vacuum dryers at temperatures of 40, 50 and 60 oC. The results of convective drying kinetics of biofilms showed a constant drying rate period followed by a falling drying rate period. The results of thickness showed dependence with moisture content present in films.Carrageenan films showed promising results, with high values of tensile strength and elongation for convective drying at 60 oC.

Keywords: gelatin; carrageenan; drying; biofilm


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