Plastic materials have become an integral part of contemporary life because of many desirable properties including durability and resistance to degradation. These plastics accumulate in the environment at a rate of more than 25 million tones per year (Konduri et al., 2011). Improper disposal of plastics has threatened natural environment worldwide since long time ago (Huey, 2006). Excessive molecular size seems to be mainly responsible for the resistance to biodegradation and their persistence in soil for a long time (Kirithika et al., 2011). Because of environmental pollution problems caused by using synthetic polymers based on petrochemicals, the development of environmental friendly polymeric materials has attracted extensive interest (Ga et al., 2005). Agropolymers such as starch or cellulose from agro-resources