Hoyos-Concha, J.L.; Villada-Castillo, H.S.; Fernández-Quintero, A.; Ortega-Toro, R. Rheological Study of an Extruded Fish Diet with the Addition of Hydrolyzed Protein Flour. Appl. Sci.2021, 11, 8105.
Hoyos-Concha, J.L.; Villada-Castillo, H.S.; Fernández-Quintero, A.; Ortega-Toro, R. Rheological Study of an Extruded Fish Diet with the Addition of Hydrolyzed Protein Flour. Appl. Sci. 2021, 11, 8105.
Hoyos-Concha, J.L.; Villada-Castillo, H.S.; Fernández-Quintero, A.; Ortega-Toro, R. Rheological Study of an Extruded Fish Diet with the Addition of Hydrolyzed Protein Flour. Appl. Sci.2021, 11, 8105.
Hoyos-Concha, J.L.; Villada-Castillo, H.S.; Fernández-Quintero, A.; Ortega-Toro, R. Rheological Study of an Extruded Fish Diet with the Addition of Hydrolyzed Protein Flour. Appl. Sci. 2021, 11, 8105.
Abstract
The extrusion of food for human and animal consumption is a unit operation that includes mixing, shearing and force to the materials related to the rheological properties of the materials in the extruder. The present work aims to study the rheological behavior of an extruded fish diet incorporating hydrolyzed protein flour processed by extrusion. The measurement was carried out online with a slit die rheometer, defining the rheological models and parameters that fit the process. During the extrusion process, the raw materials used were hydrolyzed protein meal, fish meal and cassava starch. For the results, the evaluated treatments were adjusted to the Power Law, where an increase in the shear rate decreases the viscosity of the material, corresponding to a pseudoplastic behavior. The incorporation of hydrolyzed protein flour presented a significant effect on the value of n and Klp, increasing the viscosity with the increase in the percentage of inclusion of HPH. The models obtained for the prediction of the viscosity are adjusted to the changes in shear rate, temperature and humidity of the system.
Keywords
Hydrolyzed protein flour; Cassava starch; In-line rheology; Power law; Pseudoplastic
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
