Location: Plant Polymer ResearchTitle: Preparation and characterisation of zein and chitosan edible film Author
|Pinho, L - Embrapa|
|Oliveira, M - Embrapa|
|Oliveira, W - Embrapa|
|Furtado, Roselayne - Embrapa|
|Bastos, M - Embrapa|
|Muniz, C - Embrapa|
Submitted to: Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 10/20/2016
Publication Date: 10/27/2016
Citation: Pinho, L.X., Oliveira, M., Oliveira, W.Q., Furtado, R.F., Bastos, M., Muniz, C., Biswas, A., Cheng, H.N. 2016. Preparation and characterisation of zein and chitosan edible film. Proceedings of the 25th Food Science and Technology Brazilian Congress (CBCTA) and the 10th CIGR Section IV International Technical Symposium, October 24-27, 2016, Gramado/RS, Brazil.
Interpretive Summary: There is continuing need for biodegradable food packaging films. One potential product is the blend of zein and chitosan. In this work, a careful study has been made of the thermal process whereby the film blend is made. The resulting films have been characterized by a range of analytical techniques. The information is useful for the future development of zein/chitosan packaging films.
Technical Abstract: The aim of this work was to develop zein/chitosan blends and study the heat effect on chitosan in the film-making process. The zein and chitosan solutions were prepared separately; two different chitosan solutions were produced, one heated at 80 ºC for 1 h, and another just stirred for 1 h and unheated. Thickness, color, water solubility, contact angle and mechanical properties of the blend films were investigated. The data indicated that heating the chitosan solution did not improve the physical characteristics of the film. Instead, the zein-chitosan films prepared with unheated chitosan showed better results for water solubility, contact angle and mechanical properties.