Después de la captura y muerte del pez, este experimenta una serie de cambios bioquímicos que afectan su composición y dan lugar al proceso de deterioro  influyendo en la caracterización de las propiedades termofísicas del músculo. La velocidad de deterioro varía según las especies, dependiendo de diversos factores tales como el tamaño, estado fisiológico, alimentación, método de captura, temperatura de almacenamiento, entre otros. Con la finalidad de determinar el comportamiento de las principales propiedades termofísicas durante el desarrollo del rigor mortis de trucha arco iris (Oncorhynchus mykiss), se determinó experimentalmente la variación del calor específico (Cp), difusión térmica (a), densidad (r) y conductividad térmica (k) en diferentes intervalos de tiempo. Cuando se evaluaron las fases del rigor mortis, el Índice de Rigor (IR) alcanzó el 86 % a las 2 h...

This study determined the operational capacity of the freezing tunnel of a fishing services company. The operation of the equipment was inspected, the theoretical operational parameters were collected, and in 40 selected points, the speed (1,8 – 4,4 m/s) and temperature (–25 °C and –11 °C) of the air, and the initial and final freezing temperatures of whole gutted mahi-mahi (Coryphaena hippurus) were evaluated. The real operating capacity of the equipment (77,2 kW) was calculated by applying mathematical expressions that allowed to determine the thermal loads, and later it was compared with the design capacity (75 kW). The speed and temperature of the air inside the equipment and the temperature distribution of the product were not uniform. They depended on the location of the fans and the measurement points. These variations affected the thermal loads generated by the product an...

This study determined the operational capacity of the freezing tunnel of a fishing services company. The operation of the equipment was inspected, the theoretical operational parameters were collected, and in 40 selected points, the speed (1,8 – 4,4 m/s) and temperature (–25 °C and –11 °C) of the air, and the initial and final freezing temperatures of whole gutted mahi-mahi (Coryphaena hippurus) were evaluated. The real operating capacity of the equipment (77,2 kW) was calculated by applying mathematical expressions that allowed to determine the thermal loads, and later it was compared with the design capacity (75 kW). The speed and temperature of the air inside the equipment and the temperature distribution of the product were not uniform. They depended on the location of the fans and the measurement points. These variations affected the thermal loads generated by the product an...