期刊
FOOD CHEMISTRY
卷 130, 期 4, 页码 767-784出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2011.07.102
关键词
Selenium; Food; Speciation; Bioavailability; Metabolism
Selenium is an essential trace element that has raised interest because of its antioxidant and anticancer properties. The beneficial or toxic effect of Se is not only dose-dependent, but also relates to the chemical form of the element and its bioavailability. In this review, recently published data is summarised concerning both Se speciation and Se relative bioavailability in various foodstuffs. In addition, Se bioavailability is discussed in relation to the species-dependent metabolism in humans. In this way, the understanding of the potential health impact of Se species in commonly consumed food is aimed to be improved. It is strongly suggested on the basis of a higher retention and a lower toxicity, that organic Se (especially SeMet, the major species in food) is more recommendable than inorganic Se in the frame of a balanced diet. Further research is however desirable concerning the characterisation of unidentified Se species and determination of their health effects. (C) 2011 Elsevier Ltd. All rights reserved.
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