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Título: | Enzymatic conversion of date fruit fiber concentrates into a new product enriched in antioxidant soluble fiber |
Autor: | Mrabet, Abdessalem; Rodríguez-Gutiérrez, Guillermo CSIC ORCID ; Rubio-Senent, Fátima CSIC ORCID; Hamza, Hammadi; Rodríguez-Arcos, Rocío CSIC ORCID ; Guillén Bejarano, Rafael CSIC ORCID ; Sindic, Marianne; Jiménez Araujo, Ana CSIC ORCID | Palabras clave: | Date fruit Date fiber concentrate Soluble dietary fiber Enzymatic hydrolysis Prebiotic oligosaccharides |
Fecha de publicación: | ene-2017 | Editor: | Elsevier | Citación: | LWT - Food Science and Technology 75: 727–734 (2017) | Resumen: | Soluble dietary fiber (SDF) has got increasing interest because of its prebiotic effects and technological applications. The enzymatic hydrolysis is an effective treatment to convert insoluble dietary fiber (IDF) into SDF. Date fiber concentrate (DFC) is a very good source of dietary fiber, but its IDF/SDF ratio is very high. In this study an enzymatic treatment has been optimized to enrich DFC in SDF: Viscozyme® L from Novozymes A/S at 2.38 mL enzyme/100 mL reaction volume, in a solid/liquid ratio 1 g/35 mL, at 55 °C during 30–60 min. In these conditions, the amount of SDF increased from 1.8–6.3 to 5.4 g/100 g, and the ratio IDF/SDF changed from 19 to 2–3. In the SDF, besides an increase in the antiradical activity, gluco-, manno-, and xylo-oligosaccharides have been identified. Their molecular weights varied in a wide range, depending of hydrolysis duration, which suggests that this enzymatic treatment could be a promising process for obtaining tailor-made prebiotic oligosaccharides. | Descripción: | 32 Páginas; 7 Tablas; 3 Figuras | Versión del editor: | http://dx.doi.org/10.1016/j.lwt.2016.10.017 | URI: | http://hdl.handle.net/10261/143033 | DOI: | 10.1016/j.lwt.2016.10.017 | ISSN: | 0023-6438 |
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Postprint_2017_LWTFoodSciTechnol_V75_P727.pdf | Artículo principal | 638,44 kB | Adobe PDF | Visualizar/Abrir |
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