Ciencia e Ingeniería en Alimentos y Biotecnología

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Author: search.filters.author.Barros Rivera, Brisa IsabelSubject: search.filters.subject.ACTIVIDAD ANTIOXIDANTE

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    Elaboración de un ingrediente funcional con capacidad antioxidante a partir de la frutilla (Fragaria x ananassa.)
    (Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2026-07) Barros Rivera, Brisa Isabel; Vargas López, José Homero
    The lack of knowledge regarding the creation of functional products from wild fruits is a significant obstacle, as is the underutilization of their bioactive compounds and antioxidant properties, such as polyphenols and anthocyanins. In this context, the present research focuses on valorizing this fruit as a natural and healthy alternative in the food industry to the use of artificial additives, and on establishing reliable technical parameters such as solvent concentrations and extraction times. To utilize these bioactive compounds, two fundamental parameters were considered: the extraction time (30, 60, and 90 minutes) and the ethanol concentration (25, 50, and 75 percent volume-volume), obtaining standard values at 60 minutes and a solvent at a percentage of 75. Next, the extract was subjected to a microencapsulation process by spray drying, using an encapsulating agent such as maltodextrin, the stabilization process at an inlet temperature of 150 and an outlet temperature of 80 degrees Celsius, obtaining adequate formation of microparticles and retention of the bioactive compounds. However, the results observed in the encapsulation performance, obtaining an efficiency of 88.73 percent using the DPPH assay, determined an inhibition capacity of 49.17 percent for the concentrate and 713.59 percent for the microencapsulated product, achieving antioxidant capacity after spray drying. This concludes that the use of atomization technologies aids in the formulation of functional products.