Strengthening the Physical and Mechanical Properties of Biodegradable Film of Carrageenans Using Nanoclay

Packaging is one of the most effective ways to protect food against physical, chemical and biological changes. Nowadays, regarding the environmental pollution, the use of biodegradable films have become very common, but due to the poor structure and their weakness against environmental situations, some optimizations seems necessary.In this study, production and investigation on practical properties of active edible film based on carrageenan and Nano clay 1, 3 and 5% wt (as improver of films)was examined. Results showed that best structural properties were observed in carrageenan films which contained 3% wt Nano clay. This substance can improve bio-films physical and mechanical properties and has significant positive effect of preservation ability of them as packing materials for foods. Thus using the mentioned film for packaging foodstuffs is suggested.