Abstract
Types of polysaccharides such as carrageenan are potential materials used as biofilms. Modified starch is a material that can reduce the hydrophilic properties and increase the mechanical properties of bioplastics. The objectives of this study were to determine the effect of using carrageenan and modified starch on mechanical properties and biodegradation. The experiment was conducted using a completely randomized design factorial. The treatments applied were the concentrations of carrageenan (2 and 3 gram) and modified starch (0, 0.5, 0.7, and 0.9 gram). The results showed that the addition of high carrageenan increased tensile strength, water resistance but decreased elongation and slowed biodegradation. The addition of modified starch improves the mechanical properties but slowed the biodegradation.
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