Bibliographic citations
Vito, J., (2019). Determinación de la vida útil mediante pruebas aceleradas (ASLT) de un producto extruido enriquecido con concentrado proteico de pota (Dosidicus gigas) [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/4195
Vito, J., Determinación de la vida útil mediante pruebas aceleradas (ASLT) de un producto extruido enriquecido con concentrado proteico de pota (Dosidicus gigas) [Tesis]. : Universidad Nacional Agraria La Molina; 2019. https://hdl.handle.net/20.500.12996/4195
@misc{renati/242716,
title = "Determinación de la vida útil mediante pruebas aceleradas (ASLT) de un producto extruido enriquecido con concentrado proteico de pota (Dosidicus gigas)",
author = "Vito Villa, Jordan Jesús",
publisher = "Universidad Nacional Agraria La Molina",
year = "2019"
}
The objective of the present investigation was to determine the shelf-life of an extruded product made with andean cereals and enriched with giant squid (Dosidicus gigas) protein concentrate with the use of accelerated shelf-life tests (ASLT) under controlled conditions temperature of 35 °C, 45 °C and 55 °C, and of relative humidity of 85%, using Packaging # 1, Packaging # 2 and # Packaging 3 what correspond to Metallized Bioriented Polypropylene, Polypropylene, and Coextruded Polyethylene-Polyamide, respectively. The unacceptability of the product was determined by evaluating the attributes of color, appearance, smell, taste and texture, finding the attribute texture, as the most influential in the loss of sensory quality. The critical quality factor of deterioration during the storage of the product was the moisture content, which presented a zero-order kinetic behavior. The reaction rate constants were determined at each temperature, and extrapolated to room temperature (20 ° C) and this extrapolated constant was replaced in the quality loss equation. It was estimated that at 20 ° C the shelf-life of the product was 150, 125, and 67 days for packages # 1, # 2 and # 3, respectively. Also, the shelf-life of the product was determined by moisture gain during storage, according to the Fick Law and Henry's Law, resulting 161, 127 and 72 days for packages # 1, # 2, and # 3, respectively. The maximum stability of the product was determined by the adsorption isotherm at (25 ° C), detecting that the sorption isotherm is type II, which is better suited to the Guggenheim, Anderson and de Boer model (r2> 0.96) with value of the monolayer (Xm) of 11.96 g / 100 m.s.
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