Microwave-Assisted Extraction of Phenolic Compounds from Almond Skin Byproducts (Prunus amygdalus): A Multivariate Analysis Approach
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Título: | Microwave-Assisted Extraction of Phenolic Compounds from Almond Skin Byproducts (Prunus amygdalus): A Multivariate Analysis Approach |
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Autor/es: | Valdés, Arantzazu | Vidal, Lorena | Beltrán Sanahuja, Ana | Canals, Antonio | Garrigós, María del Carmen |
Grupo/s de investigación o GITE: | Análisis de Polímeros y Nanomateriales | Espectroscopía Atómica-Masas y Química Analítica en Condiciones Extremas |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología |
Palabras clave: | Microwave-assisted extraction | Phenolic compounds | Almond skin | HPLC-DAD-ESI-MS/MS | Antioxidant activity | Linear discriminant analysis |
Área/s de conocimiento: | Química Analítica | Nutrición y Bromatología |
Fecha de publicación: | 25-may-2015 |
Editor: | American Chemical Society |
Cita bibliográfica: | Journal of Agricultural and Food Chemistry. 2015, 63(22): 5395-5402. doi:10.1021/acs.jafc.5b01011 |
Resumen: | A microwave-assisted extraction (MAE) procedure to isolate phenolic compounds from almond skin byproducts was optimized. A three-level, three-factor Box–Behnken design was used to evaluate the effect of almond skin weight, microwave power, and irradiation time on total phenolic content (TPC) and antioxidant activity (DPPH). Almond skin weight was the most important parameter in the studied responses. The best extraction was achieved using 4 g, 60 s, 100 W, and 60 mL of 70% (v/v) ethanol. TPC, antioxidant activity (DPPH, FRAP), and chemical composition (HPLC-DAD-ESI-MS/MS) were determined by using the optimized method from seven different almond cultivars. Successful discrimination was obtained for all cultivars by using multivariate linear discriminant analysis (LDA), suggesting the influence of cultivar type on polyphenol content and antioxidant activity. The results show the potential of almond skin as a natural source of phenolics and the effectiveness of MAE for the reutilization of these byproducts. |
Patrocinador/es: | We acknowledge the Spanish Ministry of Economy and Competitiveness for financial support (MAT-2011-28468-C02-01). A.V. thanks Conselleria de Educación (Spain) for ACIF/2010/172 Predoctoral Research Training Grant. |
URI: | http://hdl.handle.net/10045/47518 |
ISSN: | 0021-8561 (Print) | 1520-5118 (Online) |
DOI: | 10.1021/acs.jafc.5b01011 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2015 American Chemical Society |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1021/acs.jafc.5b01011 |
Aparece en las colecciones: | INV - NANOBIOPOL - Artículos de Revistas INV - SP-BG - Artículos de Revistas INV - AAQCN - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2015_Valdes_etal_JAFC_final.pdf | Versión final (acceso restringido) | 1,1 MB | Adobe PDF | Abrir Solicitar una copia |
2015_Valdes_etal_JAFC_accepted.pdf | Accepted Manuscript (acceso abierto) | 437,27 kB | Adobe PDF | Abrir Vista previa |
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