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dc.contributor.advisorSegobia Muñoz, Sheyling
dc.contributor.authorArana Sánchez, Tifanny Noelia
dc.date.accessioned2024-09-05T15:17:57Z
dc.date.available2024-09-05T15:17:57Z
dc.date.issued2024
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/17202
dc.descriptionThis study addresses the problem of the use of vegetable rennet in the production of fresh cheeses, looking for more sustainable alternatives to animal rennet. Internationally and nationally, the demand for fresh cheeses is increasing, highlighting the need for more efficient production methods. The main objective of the research was to evaluate the physicochemical, microbiological and organoleptic parameters of fresh cheeses made with ficin and bromelain rennets. Four treatments combining these rennets with different coagulation temperatures (37°C and 42°C) were proposed, using an AxB factorial design with three replicates each. Physicochemical analyses included titratable acidity and pH, and statistical techniques such as Dunnett's test were used to evaluate significance. The results indicated that there were no significant differences in titratable acidity between the treatments and the control, assuring the quality of the cheese. However, significant differences were observed in the pH of the ficin treatments at 42°C and bromelain at 37°C with respect to the control. Sensory analysis, carried out by means of surveys of panelists, showed a preference for the ficin treatment at 42°C in terms of flavor, odor, texture and color. Finally, microbiological analyses confirmed the absence of E. coli and Salmonella in the treated cheeses, complying with food safety standards. In conclusion, the use of vegetable rennet does not negatively affect the quality of fresh cheese and can be a viable and sustainable alternative.es_ES
dc.descriptionThis study addresses the problem of the use of vegetable rennet in the production of fresh cheeses, looking for more sustainable alternatives to animal rennet. Internationally and nationally, the demand for fresh cheeses is increasing, highlighting the need for more efficient production methods. The main objective of the research was to evaluate the physicochemical, microbiological and organoleptic parameters of fresh cheeses made with ficin and bromelain rennets. Four treatments combining these rennets with different coagulation temperatures (37°C and 42°C) were proposed, using an AxB factorial design with three replicates each. Physicochemical analyses included titratable acidity and pH, and statistical techniques such as Dunnett's test were used to evaluate significance. The results indicated that there were no significant differences in titratable acidity between the treatments and the control, assuring the quality of the cheese. However, significant differences were observed in the pH of the ficin treatments at 42°C and bromelain at 37°C with respect to the control. Sensory analysis, carried out by means of surveys of panelists, showed a preference for the ficin treatment at 42°C in terms of flavor, odor, texture and color. Finally, microbiological analyses confirmed the absence of E. coli and Salmonella in the treated cheeses, complying with food safety standards. In conclusion, the use of vegetable rennet does not negatively affect the quality of fresh cheese and can be a viable and sustainable alternative.es_ES
dc.description.abstractEste estudio aborda la problemática de la utilización de cuajos vegetales en la elaboración de quesos frescos, buscando alternativas más sostenibles frente a los cuajos animales. A nivel internacional y nacional, la demanda de quesos frescos está en aumento, destacando la necesidad de métodos de producción más eficientes. El objetivo principal de la investigación fue evaluar los parámetros físico-químicos, microbiológicos y organolépticos de quesos frescos elaborados con cuajos de ficina y bromelina. Se plantearon cuatro tratamientos combinando estos cuajos con diferentes temperaturas de coagulación (37°C y 42°C), utilizando un diseño factorial AxB con tres repeticiones cada uno. Los análisis físico-químicos incluyeron la acidez titulable y el pH, y se emplearon técnicas estadísticas como la prueba de Dunnett para evaluar significancia. Los resultados indicaron que no hubo diferencias significativas en la acidez titulable entre los tratamientos y el control, asegurando la calidad del queso. Sin embargo, se observaron diferencias significativas en el pH de los tratamientos con ficina a 42°C y bromelina a 37°C respecto al control. El análisis sensorial, realizado mediante encuestas a panelistas, mostró una preferencia por el tratamiento con ficina a 42°C en cuanto a sabor, olor, textura y color. Finalmente, los análisis microbiológicos confirmaron la ausencia de E.coli y Salmonella en los quesos tratados, cumpliendo con los estándares de seguridad alimentaria . En conclusión, el uso de cuajos vegetales no afecta negativamente la calidad del queso fresco y puede ser una alternativa viable y sostenible.es_ES
dc.format.extent48 p.es_ES
dc.language.isoeses_ES
dc.publisherBabahoyo, Ecuadores_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Ecuador*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/*
dc.subjectSosteniblees_ES
dc.subjectCoagulaciónes_ES
dc.subjectAcidezes_ES
dc.subjectSeguridad alimentariaes_ES
dc.titleEvaluación de los parámetros físico-químicos, microbiológicos y organolépticos de un queso fresco empleando cuajo vegetal a base de Ficina y Bromelina.es_ES
dc.typebachelorThesises_ES


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Atribución-NoComercial-SinDerivadas 3.0 Ecuador
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 Ecuador