膳食纤维和蛋白质组分对在地中海条件下生长的芜菁叶微量元素生物可及性的影响
Influence of Dietary Fibre and Protein Fractions on the Trace Element Bioaccessibility of Turnip Tops () Growing under Mediterranean Conditions.
作者信息
Cámara-Martos Fernando
机构信息
Departamento de Bromatología y Tecnología de Alimentos, Universidad de Córdoba, 14014 Cordoba, Spain.
出版信息
Foods. 2024 Feb 1;13(3):462. doi: 10.3390/foods13030462.
The objective of this work was to study the influence of three dietary fibre fractions (pectin, gum arabic and cellulose) and three protein fractions (casein, lactalbumin and soy) on the trace element bioaccessibility (Fe, Mn, Ni, Se and Zn) of turnip tops ( subsp. ) growing under Mediterranean conditions. Then, it aimed to promote the use of this vegetable not only for direct fresh consumption but also as a main ingredient in the development of food mixtures. The results showed that soluble fibre fractions, such as pectin and gum arabic, can enhance the bioaccessibility of trace elements, such as Fe, Mn, Se and Zn. This effect was not proved for cellulose (an insoluble fibre fraction), in which, at best, no bioaccessibility effect was observed. Regarding the protein fractions, with the exception of Se, caseins and lactalbumin had a neutral effect on improving the trace element bioaccessibility. This did not hold true for soy protein, in which a considerable improvement in the bioaccessibility of Fe, Mn, Se and Zn was determined.
这项工作的目的是研究三种膳食纤维组分（果胶、阿拉伯胶和纤维素）以及三种蛋白质组分（酪蛋白、乳白蛋白和大豆蛋白）对在地中海条件下生长的芜菁叶（亚种）中微量元素（铁、锰、镍、硒和锌）生物可及性的影响。然后，其旨在促进这种蔬菜不仅用于直接新鲜食用，还作为食品混合物开发中的主要成分。结果表明，可溶性纤维组分，如果胶和阿拉伯胶，可以提高铁、锰、硒和锌等微量元素的生物可及性。对于纤维素（一种不溶性纤维组分），未证实有这种效果，在纤维素中，至多未观察到生物可及性效应。关于蛋白质组分，除了硒之外，酪蛋白和乳白蛋白对改善微量元素生物可及性具有中性作用。大豆蛋白并非如此，其中铁、锰、硒和锌的生物可及性有显著提高。
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