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dc.contributor.advisorSegobia Muñoz, Sheyling Alexis
dc.contributor.authorRamirez Cambo, Tatiana Lizbeth
dc.date.accessioned2025-04-29T15:15:59Z
dc.date.available2025-04-29T15:15:59Z
dc.date.issued2025
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/18086
dc.descriptionThe objective of this study was to evaluate the physicochemical, microbiological, and sensory parameters of Greek yogurt with the addition of fig (Ficus carica) and blueberry (Vaccinium corymbosum) to determine their impact on the product quality. Four treatments were formulated with different fruit concentrations (5% and 10%) and two combinations of probiotics: (0.5 mL of Lactobacillus acidophilus + Bifidobacterium lactis) and (1 mL of Lactobacillus rhamnosus + Lactobacillus casei). The physicochemical analysis included the determination of pH, titratable acidity, and °Brix, with the results processed using ANOVA and Tukey's test in SPSS. The microbiological analysis was performed by counting molds and yeasts according to the NTE INEN 1529:2011 standard. The sensory evaluation was carried out by a group of 25 untrained panelists, who evaluated the attributes of flavor, aroma, texture, and color using a 5-point hedonic scale. The results indicated that the addition of fig and blueberry did not significantly affect the physicochemical parameters, remaining within the ranges established by the Ecuadorian standards. However, treatment T3 with 10% fruit and the combination of Lactobacillus acidophilus + Bifidobacterium lactis showed greater sensory acceptance, standing out in flavor and texture attributes. The microbiological analysis confirmed that the product met the established safety standards according to the regulations. In conclusion, the incorporation of fig and blueberry into Greek yogurt improves the sensory perception without altering its physicochemical stability, representing an innovative alternative for the Ecuadorian dairy industry.es_ES
dc.descriptionThe objective of this study was to evaluate the physicochemical, microbiological, and sensory parameters of Greek yogurt with the addition of fig (Ficus carica) and blueberry (Vaccinium corymbosum) to determine their impact on the product quality. Four treatments were formulated with different fruit concentrations (5% and 10%) and two combinations of probiotics: (0.5 mL of Lactobacillus acidophilus + Bifidobacterium lactis) and (1 mL of Lactobacillus rhamnosus + Lactobacillus casei). The physicochemical analysis included the determination of pH, titratable acidity, and °Brix, with the results processed using ANOVA and Tukey's test in SPSS. The microbiological analysis was performed by counting molds and yeasts according to the NTE INEN 1529:2011 standard. The sensory evaluation was carried out by a group of 25 untrained panelists, who evaluated the attributes of flavor, aroma, texture, and color using a 5-point hedonic scale. The results indicated that the addition of fig and blueberry did not significantly affect the physicochemical parameters, remaining within the ranges established by the Ecuadorian standards. However, treatment T3 with 10% fruit and the combination of Lactobacillus acidophilus + Bifidobacterium lactis showed greater sensory acceptance, standing out in flavor and texture attributes. The microbiological analysis confirmed that the product met the established safety standards according to the regulations. In conclusion, the incorporation of fig and blueberry into Greek yogurt improves the sensory perception without altering its physicochemical stability, representing an innovative alternative for the Ecuadorian dairy industry.es_ES
dc.description.abstractEl presente estudio tuvo como objetivo evaluar los parámetros fisicoquímicos, microbiológicos y sensoriales de un yogurt griego con adición de higo (Ficus carica) y arándano (Vaccinium corymbosum), para determinar su impacto en la calidad del producto. Se formularon cuatro tratamientos con diferentes concentraciones de frutas (5% y 10%) y dos combinaciones de probióticos: (0,5 ml de Lactobacillus acidophilus + Bifidobacterium lactis) y (1 ml de Lactobacillus rhamnosus + Lactobacillus casei). El análisis fisicoquímico incluyó la determinación de pH, acidez titulable y °Brix, cuyos resultados fueron procesados mediante ANOVA y prueba de Tukey en SPSS. El análisis microbiológico se realizó mediante el recuento de mohos y levaduras, conforme a la normativa NTE INEN 1529:2011. La evaluación sensorial fue realizada por un grupo de 25 panelistas no entrenados, quienes evaluaron los atributos de sabor, aroma, textura y color mediante una escala hedónica de 5 puntos. Los resultados indicaron que la adición de higo y arándano no afectó significativamente los parámetros fisicoquímicos, manteniéndose dentro de los rangos establecidos por la normativa ecuatoriana. Sin embargo, el T3 con 10% de fruta y la combinación de Lactobacillus acidophilus + Bifidobacterium lactis obtuvo mayor aceptación sensorial, destacándose en los atributos de sabor y textura. Los análisis microbiológicos confirmaron que el producto cumplió con los estándares de inocuidad según lo establecido con la normativa. Esto concluye que la incorporación de higo y arándano en el yogurt griego mejora la percepción sensorial sin alterar su estabilidad fisicoquímica, lo que representa una alternativa innovadora para la industria láctea ecuatoriana.es_ES
dc.format.extent68 p.es_ES
dc.language.isoeses_ES
dc.publisherBABAHOYO: UTB, 2025es_ES
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectAcidez titulablees_ES
dc.subjectlevadurases_ES
dc.subjectMohoses_ES
dc.subjectpHes_ES
dc.subjectProbióticoses_ES
dc.titleEvaluación de los parámetros fisicoquímicos, sensoriales y microbiológicos de un yogurt griego adicionando higo (Ficus carica) y arándano (Vaccinium corymbosum)es_ES
dc.typebachelorThesises_ES


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