Journal of Food Processing & Technology

Abstract

The Effects of Tannic Acid on Some Properties of Cow Gelatin's Film

Dana E, Ardestani SS and Khodabandehlo H

This paper mainly aimed on the effect of tannic acid's effect on chemo-physical and mechanical characteristic properties of cow's gelatin film. Through this research the cow gelatin film along with tannic acid with different viscosity for; 0, 250, 500, 1000 ppm via costing solvent methods examined and experimented mechanically and physico-chemical with National American Standard methods. The increasing mechanical pulling resistance test shows the reduction percentages of pulling properties due to the increasing viscosity of the tannic acid. The physicochemical properties of solvent such as: water absorbing, water solution capability, water steam influence tendency, oxygen attraction will surprisingly decrease when tannic acid concentration increases (P<0.05). In general, according to our research; in food industries, "the eatable films are used as an active packing".