El objetivo general de la investigación fue determinar la temperatura de secado y presión de vacío óptimos para obtener aceite semirrefinado de pescado de calidad aceptable; se tuvo como variables independientes la presión de vacío, con lo siguientes niveles: 0.13, 0.21, 0.41, 0.61 y 0.70 bar y la temperatura de secado con los siguientes niveles: 95.86, 100, 110, 120 y 124.14 °C, la metodología superficie respuesta con un diseño compuesto central rotacional fue empleado para su determinación; las variables dependientes fueron el % de ácidos grasos libres (%AGL) y color del producto terminado, parámetros decisivos en la aceptación de lotes del producto en la industria. Asimismo se caracterizaron físico-químicamente la materia prima así como también el producto terminado óptimo, el cual fue obtenido bajo las siguientes condiciones de operación: temperatura de secado de 1...

The objective of this study was to determine the optimal parameters of decolorization of crude oil to obtain a semi-refined fish oil of acceptable quality; response surface methodology was used, considering a central composite design with two factors: Vacuum pressure (0.13-0.7 bar) and drying temperature (96-124°C); having as dependent variables the percentage of free fatty acids (% AGL) and color of the oil. The raw material and the optimum finished product were characterized physico-chemically, which was obtained under the operating conditions: drying temperature of 110 ° C and 0.13 bar vacuum. The finished product indicated a percentage of free fatty acids of 0.27 ± 0.01% and CieLab colour with coordinates L: 48.69 ± 0.88, a: -4.28 ± 0.26 and b: 35.03 ± 0.85, which Is equivalent to color 6 -7 in Gardner scale, compliance with the industrial specifications.

The objective of this study was to determine the optimal parameters of decolorization of crude oil to obtain a semi-refined fish oil of acceptable quality; response surface methodology was used, considering a central composite design with two factors: Vacuum pressure (0.13-0.7 bar) and drying temperature (96-124°C); having as dependent variables the percentage of free fatty acids (% AGL) and color of the oil. The raw material and the optimum finished product were characterized physico-chemically, which was obtained under the operating conditions: drying temperature of 110 ° C and 0.13 bar vacuum. The finished product indicated a percentage of free fatty acids of 0.27 ± 0.01% and CieLab colour with coordinates L: 48.69 ± 0.88, a: -4.28 ± 0.26 and b: 35.03 ± 0.85, which Is equivalent to color 6 -7 in Gardner scale, compliance with the industrial specifications.

El presente estudio tuvo como objetivo determinar los parámetros óptimos de decoloración de aceite crudo para obtener un aceite semirrefinado de pescado de calidad aceptable; se utilizó la metodología de superficie de respuesta, considerando un diseño central compuesto con 2 factores presión de vacío (0.13- 0.7 bar) y temperatura de secado (96-124°C); teniendo como variables dependientes el porcentaje de ácidos grasos libres (%AGL) y color del aceite, parámetros decisivos en la aceptación de lotes del producto en la industria. Así mismo se caracterizó fisicoquímicamente la materia prima y producto terminado óptimo, el cual fue obtenido bajo las condiciones de operación: temperatura de secado de 110°C y 0.13 bar de vacío. El producto terminado indicó un porcentaje de ácidos grasos libres de 0.27 ± 0.01% y color CieLab con coordenadas L: 48,69 ± 0.88, a: -4,28 ± 0,2...

The objective of this study was to determine the optimal parameters of decolorization of crude oil to obtain a semi-refined fish oil of acceptable quality; response surface methodology was used, considering a central composite design with two factors: Vacuum pressure (0.13-0.7 bar) and drying temperature (96-124°C); having as dependent variables the percentage of free fatty acids (% AGL) and color of the oil. The raw material and the optimum finished product were characterized physico-chemically, which was obtained under the operating conditions: drying temperature of 110 ° C and 0.13 bar vacuum. The finished product indicated a percentage of free fatty acids of 0.27 ± 0.01% and CieLab colour with coordinates L: 48.69 ± 0.88, a: -4.28 ± 0.26 and b: 35.03 ± 0.85, which Is equivalent to color 6 -7 in Gardner scale, compliance with the industrial specifications.

The objective of this study was to determine the optimal parameters of decolorization of crude oil to obtain a semi-refined fish oil of acceptable quality; response surface methodology was used, considering a central composite design with two factors: Vacuum pressure (0.13-0.7 bar) and drying temperature (96-124°C); having as dependent variables the percentage of free fatty acids (% AGL) and color of the oil. The raw material and the optimum finished product were characterized physico-chemically, which was obtained under the operating conditions: drying temperature of 110 ° C and 0.13 bar vacuum. The finished product indicated a percentage of free fatty acids of 0.27 ± 0.01% and CieLab colour with coordinates L: 48.69 ± 0.88, a: -4.28 ± 0.26 and b: 35.03 ± 0.85, which Is equivalent to color 6 -7 in Gardner scale, compliance with the industrial specifications.