Caracterización fisicoquímica de almidón de Solanum tuberosum Nativa, Variedad "Lengua de Vaca"
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Date
2015
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Publisher
Universidad de Concepción
Abstract
Se caracterizaron las propiedades fisicoquímicas de almidón de papa nativa, variedad “Lengua de Vaca”.
Para la obtención del material termoplástico, se utilizó papa nativa, la que se peló, trozó, trituró y tamizó, llevándola a estufa hasta obtener almidón en polvo. Se realizó una reología capilar con lo que se obtuvo curvas tipo No Newtonianos plásticos para la muestra de almidón nativo, dándole características de un fluido plástico.
Para la caracterización fisicoquímica de almidón de Solanum tuberosum nativa, variedad “Lengua de Vaca”, se revisó bibliografía, se realizó análisis proximal entre otros ensayos, permitiendo realizar probetas de almidón termoplásticas.
Starch was extracted from Chilean native potatos, var. “Lengua de Vaca”. The raw material was peeled, pieced, crushed, sieved and oven-dried to obtain the starch powder. Its physicochemical characteristics were determined. Thermoplastic starch was obtained. A capillary rheology assay determined that the thermoplastic starch behaves as a non-Newtonian plastic. The thermoplastic materials were also subjected to tensile testing. For physicochemical characterization of native starch S. tuberosum, var. “Lengua de Vaca” literature was reviewed, proximal analysis was performed among other tests, allowing to make test tubes of thermoplastic starch.
Starch was extracted from Chilean native potatos, var. “Lengua de Vaca”. The raw material was peeled, pieced, crushed, sieved and oven-dried to obtain the starch powder. Its physicochemical characteristics were determined. Thermoplastic starch was obtained. A capillary rheology assay determined that the thermoplastic starch behaves as a non-Newtonian plastic. The thermoplastic materials were also subjected to tensile testing. For physicochemical characterization of native starch S. tuberosum, var. “Lengua de Vaca” literature was reviewed, proximal analysis was performed among other tests, allowing to make test tubes of thermoplastic starch.
Description
Tesis presentada para optar al título de Ingeniero Agroindustrial
Keywords
Papas (Tubérculos) - Chile, Reología, Termogravimetría, Almidón de Papa