EVALUACIÓN DE FITOQUÍMICOS Y ACTIVIDAD ANTIOXIDANTE DE SUBPRODUCTOS DE DÁTIL (Phoenix dactylifera L.) PRODUCIDOS EN EL ESTADO DE SONORA

María de los Ángeles de la Rosa-Alcaraz, Gastón Ramón Torrescano Urrutia, José Ángel Pérez Álvarez, Juana Fernández López, Armida Sánchez Escalante

Resumen


Los frutos y sus subproductos, son fuente importante de fitoquímicos, que impactan en la calidad de los alimentos y la salud de los consumidores. Particularmente los subproductos de dátil son fuente potencial de estas moléculas, debido a que durante su producción comercial el nivel de subproductos obtenido es importante. El objetivo de este trabajo fue determinar el efecto de utilización de diferentes métodos (maceración y extracción asistida por ultrasonido: EAU) y solventes (agua, etanol:agua, acetona:agua) de extracción, sobre el contenido de fitoquímicos y la capacidad antioxidante de extractos de subproductos de dátil producidos en el estado de Sonora. Se determinó el contenido de compuestos fenólicos (fenoles, CFT; y flavonoides CFlvT totales), además de la capacidad antioxidante (radical-DPPH•+ y poder reductor, PR). Los resultados mostraron que los subproductos de dátil presentan contenido de humedad (28.44%), grasa (0.52%), proteína (2.56%) y cenizas (2.75%), similares al fruto comercial. Además, se encontró que la utilización de diferentes solventes afectó (p<0.05) el CFT (7.30-10.78 mg de EAG/100 g), CFlvT (30-32 mg ER/100g) y la inhibición del radical-DPPH• (~60%). Mientras que el PR fue afectado (p<0.05) tanto por el solvente como el método de extracción. Estos resultados muestran que los subproductos del dátil pueden ser una fuente de ingredientes funcionales antioxidantes.


Palabras clave


dátil mexicano, compuestos antioxidantes; fitoquímicos; extractos funcionales

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Referencias


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DOI: http://dx.doi.org/10.18633/biotecnia.v19i3.442

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