Bibliographic citations
Iparraguirre, R., (2018). Características fisicoquímicas y propiedades térmicas de almidón extraído de papa nativa (Solanum Tuberosum L.) variedades Perla y Renacimiento cultivadas en el Distrito de Chugay – Provincia De Sánchez Carrión [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/21727
Iparraguirre, R., Características fisicoquímicas y propiedades térmicas de almidón extraído de papa nativa (Solanum Tuberosum L.) variedades Perla y Renacimiento cultivadas en el Distrito de Chugay – Provincia De Sánchez Carrión []. PE: Universidad Nacional de Trujillo; 2018. https://hdl.handle.net/20.500.14414/21727
@misc{renati/884178,
title = "Características fisicoquímicas y propiedades térmicas de almidón extraído de papa nativa (Solanum Tuberosum L.) variedades Perla y Renacimiento cultivadas en el Distrito de Chugay – Provincia De Sánchez Carrión",
author = "Iparraguirre Cortavitarte, Ricardo Gustavo",
publisher = "Universidad Nacional de Trujillo",
year = "2018"
}
ABSTRACT The objective of the present investigation was to determine the physicochemical characteristics (granule shape and size, apparent amylose content, swelling power, solubility, paste clarity, gel firmness) and thermal properties (stability in refrigeration and freezing, Temperature and enthalpy of gelatinization) of native starch extracted from two varieties of native potato: Perla and Renacimiento. The size of the granules was found in the range of 4.63 ± 1.99 to 61.33 ± 21.52 μm and showed circular shapes for small and elliptical sizes for large sizes. The amylose content was found in the range of 20.11% to 21.35%, while the swelling power) and solubility at 90 ° C were 32.9 and 33.1 g water / g starch and 5.57 and 4.98%, respectively. Native starch of the Perla variety showed lower firmness (0.0063 kgf) and higher syneresis (15.876%) than native potato starch Renacimiento variety (0.0072 kgf and 12.66%, respectively) in storage refrigeration (4 ºC). The gelatinization temperatures were 62.51 and 61.03 ° C for starch of the Perla and Renacimiento varieties respectively. By the evaluated properties it can be considered that these starches can be used as thickening agents or sauces, foods that do not require high processing temperatures.
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