dc.contributor.advisor | Villamarín Barreiro, Juan Andrés | |
dc.contributor.author | Zuñiga Zuñiga, Lady Nayely | |
dc.date.accessioned | 2025-04-30T13:26:52Z | |
dc.date.available | 2025-04-30T13:26:52Z | |
dc.date.issued | 2025 | |
dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/18098 | |
dc.description | This research was based on the preparation of a Hibiscus sabdariffa infusion enriched with Aloe vera and Eucalyptus using Stevia Rabudiana as a non-caloric sweetener. A randomized block design (RBD) was performed with 9 treatments and three replicates, evaluating the physicochemical (pH, acidity, Brix), microbiological and sensory properties. The sensory panel consisted of 30 untrained tasters, based on a hedonic survey. The data obtained indicated that the analysis of variance (ANOVA) for acidity did find significant differences between treatments (p = 0.0198), falling within the range allowed by the INEN 2 304 standard, while dose D6 did not comply with said regulations. For pH, the ANOVA showed equally significant differences (p = 0.0774), complying with the established limits. Regarding soluble solids (°Brix), ANOVA was not performed because there was no variability between treatments, complying with the minimum °Brix. Microbiological analyses showed that the infusion did not comply with the permitted limits for yeasts, with an excess of 10 x 10¹ CFU/mL, while for molds it remained within the limit. The treatment with the highest acceptability was the infusion of Hibiscus sabdariffa (300 mL) + Aloe vera (151 mL) + Eucalyptus (45 mL) + Stevia (4 g), with an acceptance rate of 53%. In conclusion, the selected formulation is viable for the production of a natural infusion, with an adequate balance of flavor, color and aroma without adding sugar. It is recommended to carry out product shelf life studies. | es_ES |
dc.description | This research was based on the preparation of a Hibiscus sabdariffa infusion enriched with Aloe vera and Eucalyptus using Stevia Rabudiana as a non-caloric sweetener. A randomized block design (RBD) was performed with 9 treatments and three replicates, evaluating the physicochemical (pH, acidity, Brix), microbiological and sensory properties. The sensory panel consisted of 30 untrained tasters, based on a hedonic survey. The data obtained indicated that the analysis of variance (ANOVA) for acidity did find significant differences between treatments (p = 0.0198), falling within the range allowed by the INEN 2 304 standard, while dose D6 did not comply with said regulations. For pH, the ANOVA showed equally significant differences (p = 0.0774), complying with the established limits. Regarding soluble solids (°Brix), ANOVA was not performed because there was no variability between treatments, complying with the minimum °Brix. Microbiological analyses showed that the infusion did not comply with the permitted limits for yeasts, with an excess of 10 x 10¹ CFU/mL, while for molds it remained within the limit. The treatment with the highest acceptability was the infusion of Hibiscus sabdariffa (300 mL) + Aloe vera (151 mL) + Eucalyptus (45 mL) + Stevia (4 g), with an acceptance rate of 53%. In conclusion, the selected formulation is viable for the production of a natural infusion, with an adequate balance of flavor, color and aroma without adding sugar. It is recommended to carry out product shelf life studies. | es_ES |
dc.description.abstract | Esta investigación se basó en la elaboración de una infusión de Hibiscus sabdariffa enriquecida con Aloe vera y Eucalyptus usando Stevia Rabudiana como edulcorante no calórico. Se realizó un diseño de bloques al azar (DBA) con 9 tratamientos con tres repeticiones, se evaluaron las propiedades físico-químicas (pH, acidez, Brix), microbiológicas y sensoriales. El panel sensorial estuvo conformado por 30 catadores no entrenados a partir de una encuesta hedónica. Los datos obtenidos indicaron que el análisis de varianza (ANOVA) para la acidez si se encontró diferencias significativas entre tratamientos (p = 0,0198), encontrándose dentro del rango permitido por la norma INEN 2 304, mientras la dosis D6 no cumple con dicha normativa. Para el pH ANOVA mostró diferencias igualmente significativas (p = 0,0774) cumpliendo con los límites establecidos. En relación a los sólidos solubles (°Brix) no se realizó ANOVA puesto que no existió variabilidad entre los tratamientos cumpliendo el mínimo de °Brix. Los análisis microbiológicos mostraron que la infusión no cumplió con los límites permitidos para levaduras, reportando 10x101 UFC/mL superando el límite permitido, mientras que para mohos se mantuvo dentro del límite. El tratamiento que obtuvo mayor aceptabilidad fue la infusión de Hibiscus sabdariffa (300 mL) + Aloe Vera (151 mL) + Eucalyptus (45 mL) + Stevia (4 g) con una aceptación del 53 %. En conclusión, la formulación seleccionada es viable para la producción de una infusión natural, con un balance correcto del sabor, color y aroma sin agregar azúcar. Se recomienda realizar estudios de vida útil del producto. | es_ES |
dc.format.extent | 76 p. | es_ES |
dc.language.iso | es | es_ES |
dc.publisher | BABAHOYO: UTB, 2025 | es_ES |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
dc.subject | Antioxidantes | es_ES |
dc.subject | Beneficios | es_ES |
dc.subject | Enriquecidas | es_ES |
dc.subject | Dosis | es_ES |
dc.subject | Vida útil | es_ES |
dc.title | Elaboración de una infusión de Hibiscus sabdariffa enriquecida con Aloe vera y Eucalyptus, con la aplicación de un edulcorante no calórico. | es_ES |
dc.type | bachelorThesis | es_ES |