Agricultural and Synthetic Polymers.. Biodegradability and by Glass J.E., Swift G.

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2006). Casein and gluten are two major protein based materials, which exhibit properties favorable for food packaging. , 2011). Gluten, commonly found in wheat and corn, is an excellent film forming agent. , 1990). , 1996). Corn zein, soy protein, whey protein, peanut protein, collagen and gelatin are some of the other protein materials which have been studied and utilized for packaging application. Corn zein possesses good oxygen barrier property and excellent WVP (about 800 times higher than that of a typical shrink-wrap film (Cha and Chinnan, 2004)).

2011) performed migration studies on nanocomposite films of PLA and nanosized layered double hydroxide (LDH) platelets using a fatty food simulant. Total migration and specific migration of LDH and laurateorgano modifier (used to improve LDH dispersion in PLA) were found to increase with increased LDH loading in the nanocomposite films. Currently, literature on migration studies of nanoparticles/nanofillers from polymer nanocomposites to food products is limited and hence, more extensive migration studies on polymer nanocomposite packaging materials are required.

8 CONCLUSION Thermal, mechanical, and barrier properties of polymers are critical in determining their suitability as packaging materials. Properties of packaging plastics can vary significantly depending on the field of application. For example, several food packaging applications require polymers having good resistance to oxygen and moisture transmission, that is, good barrier properties.

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