Evaluation of chitosan film and coating from natural products on processed products in the packaging process and its functional and biological properties

Chitosan is a cationic polymer obtained by deacetylation of chitin, found abundantly in crustacean, insect, arthropod exoskeletons, and molluscs. The process of obtaining chitin by the chemical extraction method comprises the steps of deproteinization, demineralization, and discoloration. To obtain chitosan, the deacetylation of chitin is necessary. Therefore, this polymer is very attractive for application in several areas due to its characteristics, giving this polysaccharide a very promising future as a biomaterial. The first reports on chitosan films are from the mid-۱۹۳۰s and until now it has been applied differently in the development of biodegradable food packaging. One of the main challenges for using chitosan to design food packaging is related to its physical properties, e.g., water vapor permeability and processability. These include development of new smart future trends to biomaterials as promising wound healing effects and therapeutic molecules that are released at the same time as the microbial growth.

کلیدواژه ها:

chitosan ، biological ، Chitin ، extract ، functional