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Título: | Effect of phytic acid degradation by soaking and exogenous phytase on the bioavailability of magnesium and zinc from Pisum sativum, L. |
Autor: | Urbano, Gloria; Frejnagel, Sławomir; Porres, Jesús M.; Aranda Ramírez, María Pilar; Gómez-Villalva, Elena; Frías, Juana CSIC ORCID ; López-Jurado, María | Palabras clave: | Pisum sativum Phytase Magnesium Zinc Bioavailability |
Fecha de publicación: | nov-2007 | Editor: | Springer Nature | Citación: | European Food Research and Technology 226 (1): 105-111 (2007) | Resumen: | The effect of dephytinization of Pisum sativum, L. flour on the bioavailability of Mg and Zn was evaluated in growing rats. Processing of legume flours under optimal conditions for phytase activity (pH 5.5, 37 °C, 60 min) and subsequent removal of the soaking solution led to a 42 and 61% reduction in the content of Mg and Zn, respectively. Treatment with phytase led to an additional reduction in the concentration of the above-mentioned seed flour components, compared to the raw pea flour (69% and 74% for Mg and Zn, respectively). The considerable reduction in the content of inositol phosphates with high degree of phosphorylation attained under both processing conditions did not affect the digestive utilization of Mg, whereas the metabolic utilization of this mineral increased significantly. The digestive and metabolic utilization of Zn increased significantly in response to both processes assayed, reaching the highest values in the experimental group that was fed the phytase-treated pea flour diet. The amount of Mg retained by the experimental animals was reflected in the content of this mineral in the different tissues studied (femur, sternum, kidney, and heart), whereas no correlation was found in the case of Zn | Versión del editor: | http://dx.doi.org/10.1007/s00217-006-0514-7 | URI: | http://hdl.handle.net/10261/35784 | DOI: | 10.1007/s00217-006-0514-7 | ISSN: | 1438-2377 |
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