Study of Enzymatic Degradation of (Starch/PVA Composite) Film Containing Montmorillonite by Using Alpha-amylase

It is quite important to develop some materials that can biodegrade to minimize the pollution. These materials not only provide the convenience for daily life but also minimize the impact to the environment after being used. In the long run, these materials will decompose into small environmentally friendly molecules and be handled in properly controlled environment. In this study, first nanocomposite films starch/ Polyvinyl Alcohol (PVA)/ MMT as a consumable plastic packaging industry were prepared by a solution casting method Then analyses the enzymatic degradation behaviour and its degradation enzyme alpha-amylase was evaluated. was studied the effect of factors such as: temperature conditions and the percentage of nanoparticles on the rate of destruction of nanocomposites was evaluated. Nanocomposite films with the amount of destruction tests: water absorption, weight loss, Scanning electron microscopy (SEM) and UV spectroscopy were measured. It was estimated that the nanoparticle declines the destruction. The enzyme ability for destruction is different as: Starch/PVA> Starch/PVA/ MMT