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Extracción y Cuantificación de Compuestos Fenólicos en Cascara de Rambután (Nephelium lappaceum)

Extracción y Cuantificación de Compuestos Fenólicos en Cascara de Rambután (Nephelium lappaceum)

          
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About the Book

Tesis del año 2015 en eltema Tecnología de los alimentos, Nota: 10, Materia: Alimentos funcionales, Idioma: Español, Resumen: El rambután "Nephelium lappaceum" es una fruta tropical que se introdujo hace 55 años en el estado de Chiapas en donde se ha incrementado su cultivo por su aceptación en México y sus amplias perspectivas de exportación, sin embargo su cáscara que forma un 15% de la fruta no se comercializa, en este trabajo se buscó aprovechar su cáscara por las propiedades antioxidantes que posee. Se determinó en las cáscaras de rambután el contenido de polifenoles totales mediante el método Folin Ciocalteu. Posteriormente se realizó una extracción alcohólica de las cáscaras para determinar azúcares totales y azúcares reductores. El extracto se purificó por medio de cromatografía de columna utilizado Amberlita XAD-16. El análisis de los compuestos obtenidos se sometió a un análisis por HPLC. Los compuestos aislados fueron identificad os como geranina (1), corilagina (2) y ácido elágico (3). Los resultados sugieren que los elagitanos aislados, como componentes principales de la cáscara de rambután, podrían utilizarse en la industria alimentaria, por lo que las cáscaras se utilizaron para preparar una infusión acuosa que presentó una concentración de polifenoles totales de 177.4 mg /1 g de muestra. Para determinar la mejor concentración de polifenoles que tuviera un bebida tipo té y basándose en la legislación de los antioxidantes alimentarios se hicieron tratamientos con tres concentraciones (1) 10 mg/día, (2) 100 mg/día y (3) 190 mg/día. Se realizó un análisis sensorial de grado de aceptación usando una escala hedónica de 1 a 9 aplicado a 26 jueces semientrenados. De los 3 tratamientos realizados, la muestra (2) 100 mg/día fue la que presentó mayor aceptación, por lo tanto se reafirman las posibilidades de utilizar las cáscaras de rambután para elaborar una bebida funcio


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Product Details
  • ISBN-13: 9783668157842
  • Publisher: Grin Publishing
  • Binding: Paperback
  • Language: Spanish
  • Returnable: N
  • Spine Width: 6 mm
  • Width: 148 mm
  • ISBN-10: 3668157847
  • Publisher Date: 11 Apr 2016
  • Height: 210 mm
  • No of Pages: 100
  • Series Title: Spanish
  • Weight: 140 gr


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