The Effects of Ribose on Mechanical and Physicochemical Properties of Cold Water Fish Gelatin Films

Subject Areas : Journal of Chemical Health Risks

Neda Javadian ¹ ()
Habibollah Mirzai ² ()
Abdorreza Mohammadi Nafchi ³ ()

Received: 2014-06-14 Accepted : 2018-10-29 Published : 2018-10-29

Keywords: Mechanical Properties, Sorption isotherm, Cold water fish gelatin film, Water solubility,

Abstract :

Native fish gelatin has some disadvantages such as high hydrophilic, and solubility in cold water. Mixing with other biopolymers and crosslinking by sugars may improve functional properties of fish gelatin. So in this research, the effects of ribose were investigated on moisture sorption isotherm, solubility in water, and mechanical properties of cold water fish gelatin (CWFG) films. Ribose sugar was incorporated into CWFG solutions at different concentrations (e.g. 0, 2, 4, and 6% w/w dried gelatin). Physicochemical properties such as water solubility, moisture sorption isotherm and mechanical properties of the films were measured according to ASTM standards. Results showed that incorporation of ribose sugar significantly improved functional properties of CWFG films. Solubility, moisture content and monolayer water content of the matrixes were decreased by increasing the ribose contents. Mechanical properties of biocomposites were improved more than 20% and moisture sorption isotherm curve significantly shifted to lower moisture contents. The results of this study could be explored for commercial use, depending on industrial needs for either production of edible films or for packaging purposes.

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