The interest on polymeric films from renewable sources is due to its potential for food and agricultural aplications and also because its biodegradable feature. They are produced from proteins, polysaccharides, lipids and derivatives. Considering these aspects, this work is related with the improvement of polymeric films of low methoxylation pectin. It was performed by the addition of honeycomb waste and calcium carbonate from eggshell waste, to provide fibrous and particulate reinforcement. It was also added glycerol as plasticizer to easier the film conformation. The films were obtained by casting technique. The characterization included scanning electron microscopy (SEM) and structural analysis. SEM showed a good dispersion of fibrous and particulate fillers in the pectin matrix. Mechanical properties were performed according to ASTM D-882, for tensile properties of thin plastic films. Properties measured were elastic modulus and yielding stress. The use of both wastes resulted in an improvement of these mechanical properties, but multiple linear regression showed that eggshell presented higher effect. In an overall context, it was possible to use natural wastes as reinforcement to polymeric films from renewable sources.
