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This paper deals with the optimization of the conditions to formulate paste based on olive fruits. The processing stages included: washing, blending, oil addition and preservation. Pair-comparisons and ranking tests were carried out by both a trained panel and a consumer panel to single out the preferred sample at each stage. The sensory attributes considered were taste, visual texture, texture in the mouth and overall preference. The results of the sensory analyses were processed statistically by means of ANOVA and the Friedman test to select the most appropriate processing conditions: washing for 30 minutes three times, blending at 2000 r.p.m, and the addition of 10 mL of oil. Several pasteurization conditions were assayed (62.5, 75, 85 and 95 °C for 15 minutes). No significant color differences (p < 0.05) were found for the objective color measurement (CIELAB) of the pastes submitted to the different pasteurization conditions. Based on the results of the preference test, the pasteurization conditions selected were heating at 85 °C for 15 minutes  Este trabajo presenta la optimización de las condiciones de formulación de una pasta de aceitunas. La elaboración comprendió diferentes fases: lavado, mezcla, adición de aceite y conservación. Un panel entrenado y un panel de consumidores realizaron pruebas de comparación por pareja y test de ordenación para seleccionar la muestra preferida en cada fase. Los atributos sensoriales considerados fueron sabor, textura visual, textura en boca y preferencia total. Los resultados del análisis sensorial se procesaron estadísticamente mediante ANOVA y el test de Friedman para seleccionar las condiciones óptimas de elaboración: lavado 3 veces durante 30 minutos, mezclado a 2000 r.p.m y adición de 10 mL de aceite de cobertura. Se ensayaron diferentes condiciones de pasteurización (62.5, 75, 85 y 95 °C durante 15 minutes). No se encontraron diferencias significativas (p < 0.05) de color (CIELAB) entre las pastas sometidas a diferentes condiciones de conservación. En base a los resultados del test de preferencia, las condiciones seleccionadas fueron: calentar a 85 °C durante 15 minutos

Optimization of olive-fruit paste production using a methodological proposal based on a sensory and objective color analysis