dc.contributor.advisor | Segobia Muñoz, Sheyling | |
dc.contributor.author | Arana Sánchez, Tifanny Noelia | |
dc.date.accessioned | 2024-09-05T15:17:57Z | |
dc.date.available | 2024-09-05T15:17:57Z | |
dc.date.issued | 2024 | |
dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/17202 | |
dc.description | This 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 | This 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.abstract | Este 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.extent | 48 p. | es_ES |
dc.language.iso | es | es_ES |
dc.publisher | Babahoyo, Ecuador | es_ES |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | * |
dc.subject | Sostenible | es_ES |
dc.subject | Coagulación | es_ES |
dc.subject | Acidez | es_ES |
dc.subject | Seguridad alimentaria | es_ES |
dc.title | Evaluación de los parámetros físico-químicos, microbiológicos y organolépticos de un queso fresco empleando cuajo vegetal a base de Ficina y Bromelina. | es_ES |
dc.type | bachelorThesis | es_ES |