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The growing interest in using eco friendly products has stimulated research and development of new materials such as biodegradable polymers. Furthermore, due to various restrictions regulated by the law and a very high consumption of plastics, fluctuating cost of petroleum-based materials based on oil prices and environment pollution, biodegradable polymers have been developed and have partially or completely replaced conventional plastics in some applications. Starch is an abundant and naturally occuring polymer that is increasingly used in the production of packaging. Starch has been considered as an attractive biopolymer because of its low cost, low density and biodegradability. It can be used in its native form as a filler with another polymer or it can be processed into a thermoplastic material and mixed with other polymers to forms polymer blends [1, 2]. Native starch is found in granular form and it is composed of two major polysaccharides, amylose and amylopectin (Fig. 1). Linear amylose is soluble in water and has a helical structure. Amylopectin molecules are short, branched and easy to crystallize.

Properties of biodegradable films based on thermoplastic starch and poly(butylene succinate) with plant oil additives