Comparative study on filming technology and properties comparison of different chitosan edible films
The filming technology and properties of five kinds of edible films were comparatively studied in this paper.The blend films were prepared by separately adding stearic acid,gelatin,corn starch,soybean protein into chitosan,and then the properties of the edible films,such as the thickness,sensory characteristic,transparency,drop penetration time,impregnating oil property and heat sealability were measured.The results showed that thickness and transparency of chitosan film was the best,but with low heat sealability and the worst hydraulic resistance;the drop penetration time of the chitosan-corn starch film was the longest(water resistant ability was the strongest),but with the maximum thickness and the worse transparency.