Starch

Engineering

Materials science

Raw material

Chemical engineering

Food science

Sodium hypochlorite

Organic chemistry

Composite material

Chemistry

Extrusion

Revista Iberoamericana de Polímeros

Native banana starch is a raw material very important for the elaboration of biodegradable plastics, however, native starch has inconveniences as are the color and low mechanical properties that present their films. For overcome these disadvantages the oxidation by chemical modification was employed, it produced a bleaching and a decrease in the viscosity due a depolimerization. Thermal analysis was applied to bleached starches and scanning electronic microscopy was used to observed that these starches have not structural modification inside the granule and Fourier transformed infrared verified this situation. Process of oxidation with sodium hypochlorite is a excellent way for elimination of sludge and to obtain a blanched starch that it was use for the elaboration of biodegradable packaging plastics materials that through the extrusion process these will have manufacturing to commercial scale

Oxidación del almidón nativo de plátano para su uso potencial en la fabricación de materiales de empaque biodegradables: caracterización física, química, térmica y morfológica