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Título: | Phenolic extract obtained from steam-treated olive oil waste: Characterization and antioxidant activity |
Autor: | Rubio-Senent, Fátima CSIC ORCID; Rodríguez-Gutiérrez, Guillermo CSIC ORCID ; Lama Muñoz, Antonio CSIC ORCID ; Fernández-Bolaños Guzmán, Juan CSIC ORCID | Palabras clave: | 3,4-Dihydroxyphenylglycol Alperujo Antioxidant Hydroxytyrosol Phenols |
Fecha de publicación: | 1-ene-2013 | Editor: | Elsevier | Citación: | LWT - Food Science and Technology 54 (1): 114-124 (2013) | Resumen: | Alperujo or olive oil waste was hydrothermally treated at 160°C for 60min to increase the phenols in the liquid phase. The extract obtained from the liquid using ethyl acetate extraction was divided into 27 phenolic fractions using adsorbent and polyamide resins. Phenolic alcohols and acids, secoiridoid molecules, elenolic acid derivatives, flavonoids, verbascoside, degradation products of sugar and a polymeric phenolic fraction (PPF) were characterized using HPLC-ESI-MS. The antiradical activity, ferric reducing power and the inhibition of primary and secondary oxidation were examined for each fraction. Hydroxytyrosol was the most abundant phenol in the ethyl acetate extract and possibly the main component responsible for the invitro antioxidant activity of the entire phenol extract. However, other phenolic and secoiridoid molecules with interesting biological properties were also identified, and the crude extract could be considered a potential source of natural antioxidants. © 2013 Elsevier Ltd. | Descripción: | 18 Páginas.-- 2 Tablas.-- 5 Figuras | Versión del editor: | https://doi.org/10.1016/j.lwt.2013.04.011 | URI: | http://hdl.handle.net/10261/347798 | DOI: | 10.1016/j.lwt.2013.04.011 | ISSN: | 00236438 |
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PostP_2013_FoodSciTechnol_V54_P114.pdf | Artículo principal | 1,07 MB | Adobe PDF | Visualizar/Abrir |
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