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  • 1
    Publication Date: 2021-05-19
    Description: Se valoró el uso de diferentes combinaciones de preservantes químicos en la elaboración de un producto untable no fermentado, con vistas a incrementar el tiempo de vida útil del mismo. Los preservantes utilizados fueron sorbato de potasio, ácido benzoico y ácido sórbico, estableciéndose las combinaciones posibles de dos conservantes, que no superara 0,1 % por combinación en el producto final. Se determinó el tiempo de vida útil del untable elaborado con cada combinación, mantenidos a 6 ± 2 ºC. El estudio se realizó siguiendo un diseño de muestreo parcialmente escalonado y tomando como rechazo la modificación de los atributos de calidades físico-químicas, microbiológicas y sensoriales. Se precisó que con las 3 combinaciones estudiadas se incrementó la durabilidad del untable no fermentado elaborado en el país (28 días) en más de un mes y la mejor combinación fue: sorbato de potasio: ácido benzoico (0,05 %: 0,05 %) con la que se alcanzó una durabilidad de 10 semanas, considerando 20 % de muestras rechazadas y tomando el valor medio del percentil. Durante el tiempo de conservación no se detectaron cambios físico- químicos ni sensoriales; el rechazo de las muestras se debió al deterioro de su calidad microbiológica.
    Description: The use of different combinations of chemical preservers was valued in the elaboration of a not fermented spreadable product, with the objective to increasing the time of useful life of the same one. The utilized preservers were potassium sorbate, benzoic acid and the sorbic acid settling down the combinations possible of two preservers that didn’t overcome 0.1% for combination in the end product. The time of useful life of each spreadable product elaborated was determined at the temperature of 6 ± 2 ºC. The study was carried out following a design of partially stepped sampling and taking like rejection the modification of the physical-chemical, microbiologic and sensorial attributes of quality. It was established that with the 3 studied combinations, the durability of the not fermented spreadable, elaborated in the country (28 days), was increased in more than one month and the best combination was: potassium sorbate: benzoic acid (0.05%: 0.05%) with a durability of 10 weeks, considering 20% of rejected samples and taking the mean value of the percentile. During the time of conservation neither physical-chemical nor sensorial changes were detected; the rejection of the samples was due to the deterioration of its microbiologic quality.
    Description: Published
    Description: spreads
    Description: potassium sorbate
    Keywords: Benzoic acid ; Sorbic acid ; Sorbates ; Shelf life ; Preservatives
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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