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Browsing by Autor "J.M. Cruz Salcedo"

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    Aspectos teóricos del proceso de liofilización de alimentos
    (2019) Keyla Márquez; Domingo Alarcón; Milagro Yesenia Montilla Dávila; Elkis Weinhold; J.M. Cruz Salcedo
    Due to the emergency related to the food supply in Venezuela nowadays, it is necessary developing, in a short time, some systems and processes pointing to conservation of season food to enable them to be consumed during the whole year. One of the most used methods is the dehydration, which consists in removing only the water content from the food. In this paper, some theoretical aspects of a dehydration technique known as lyophilization, to process food by vacuum removing the water at moderate temperature. In this process, evaporation of water from its liquid phase, as ordinarily happens during drying, does not occur but by sublimation of ice to evaporate to steam water without passing for the liquid phase. That is why the material should be frozen at the beginning of the drying process.
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    Incidencia de las condiciones de almacenamiento en la calidad fisicoquímica del quesos amarillo tipo edam
    (2019) J.M. Cruz Salcedo; Bernardo Madrid
    El queso amarillo es producto fresco madurado, solido o semisolido obtenido a partir de la leche fresca y la adicion de fermentos y colorantes que ayudan a la maduracion del queso. Sin embargo, se ha observado una gran cantidad de perdidas en la comercializacion del mismo debido a la proliferacion excesiva de microorganismos, a causa de sus condiciones de almacenamiento. Debido a esto, el objetivo principal de esta investigacion, es analizar la incidencia de las condiciones de almacenamiento en la calidad fisicoquimica del queso amarillo tipo Edam. Para ello, se realizaron analisis fisicoquimicos a 3 barras de quesos provenientes de tres tarimas diferentes, y asi compararlos con lo establecido en la norma COVENIN 1538-92. Arrojando como resultados en los analisis fisicoquimicos con un valor de pH: 6.10, cloruros: 1.92%, grasa (metodo Gerber):48.45%, humedad: 45.95%. Por tanto, se concluye que las condiciones de almacenamiento influyen de manera negativa al llevarse a cabo el proceso de maduracion.

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