Aprovechamiento de la yuca amarga Manihot esculenta Crantz ) para la extracción de almidón y la producción de un material termoplástico (TPS)
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Fecha
2019
Autores
Araya-Navarro, Josette Lucia
ESQUIVEL, MARIANELLY
Jiménez-Villalta, Guillermo
Rojas Carrillo, Oscar
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Universidad Nacional (Costa Rica)
Resumen
La versatilidad de los materiales poliméricos derivados de hidrocarburos fósiles ha beneficiado el desarrollo industrial, sin embargo, han ocasionado efectos adversos sobre el medio ambiente. Para minimizar estas consecuencias indeseables, se están investigando fuentes agrícolas renovables como alternativa para el desarrollo de bioplásticos. En este sentido, la extracción de almidón de yuca amarga (Manihot esculenta Crantz), permitió la obtención de un material termoplástico de almidón (TPS), realizando una gelación con plastificantes como agua y glicerol. Los resultados basados en análisis térmicos, mecánicos y morfológicos permitirán determinar si el biocompuesto de almidón de yuca puede considerarse una alternativa prometedora para la sustitución de plásticos de un solo uso.
The versatility of polymeric materials derived from fossil hydrocarbons has greatly benefited industrial development, however, have caused adverse effects on the environment. In order to minimize these undesirable consequences, renewable agricultural sources are investigated as an alternative for the development of bioplastics. In this sense, the extraction and processing of starch from bitter cassava (Manihot esculenta Crantz), allows the obtention of starch thermoplastic (TPS) by gelation with the addition of plasticizers such as water and glycerol. The results based on thermal, mechanical and morphological analyzes will allow to determine if the cassava starch biocomposite can be considered a promising alternative for the substitution of single-use plastics.
The versatility of polymeric materials derived from fossil hydrocarbons has greatly benefited industrial development, however, have caused adverse effects on the environment. In order to minimize these undesirable consequences, renewable agricultural sources are investigated as an alternative for the development of bioplastics. In this sense, the extraction and processing of starch from bitter cassava (Manihot esculenta Crantz), allows the obtention of starch thermoplastic (TPS) by gelation with the addition of plasticizers such as water and glycerol. The results based on thermal, mechanical and morphological analyzes will allow to determine if the cassava starch biocomposite can be considered a promising alternative for the substitution of single-use plastics.
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Palabras clave
BIOPLÁSTICO, ALMIDÓN, THERMOPLASTIC, PLASTICIZER, POLIMEROS, POLYMERS