In vivo bioavailability of selenium in enriched Pleurotus ostreatus mushrooms

Show simple item record Silva, Marliane C. S. da Naozuka, Juliana Oliveira, Pedro V. Vanetti, Maria C. D. Bazzolli, Denise M. S. Costa, Neuza M. B. Kasuya, Maria C. M. 2018-06-11T13:06:48Z 2018-06-11T13:06:48Z 2010-01-07
dc.identifier.issn 1756591X
dc.description.abstract The in vivobioavailability of Se was investigated in enriched Pleurotus ostreatus mushrooms. A bioavailability study was performed using 64 Wistar male rats separated in 8 groups and fed with different diets: without Se, with mushrooms without Se, with enriched mushrooms containing 0.15, 0.30 or 0.45 mg kg^−1Se and a normal diet containing 0.15 mg kg^−1 of Se using sodium selenate. The experiment was performed in two periods: depletion (14 days) and repletion (21 days), according to the Association of Official Analytical Chemists. After five weeks, the rats were sacrificed under carbon dioxide, and blood was drawn by heart puncture. Blood plasma was separated by centrifugation. The total Se concentration in the plasma of rats fed with enriched mushrooms was higher than in rats fed with a normal diet containing sodium selenate. The plasma protein profiles were obtained using size exclusion chromatography (SEC) and UV detectors. Aliquots of effluents (0.5 mL per minute) were collected throughout in the end of the chomatographic column. However, Se was determined by graphite furnace atomic absorption spectrometry (GF AAS) only in the aliquots where proteins were detected by SEC-UV. The plasma protein profile of rats fed with different diets was similar. The highest Se concentration was observed in a peptide presenting 8 kDa. Furthermore, the higher Se concentration in this peptide was obtained for rats fed with a diet using enriched mushrooms (7 μg L^−1Se) compared to other diets (2–5 μg L^−1Se). These results showed that Se-enriched mushrooms can be considered as an alternative Se food source for humans, due to their high bioavailability. en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Metallomics pt-BR
dc.relation.ispartofseries v. 2, n. 2, p. 162–166, Janeiro 2010 pt-BR
dc.rights The Royal Society of Chemistry pt-BR
dc.subject Bioavailability pt-BR
dc.subject Mushrooms Pleurotus pt-BR
dc.title In vivo bioavailability of selenium in enriched Pleurotus ostreatus mushrooms en
dc.type Artigo pt-BR

Files in this item

This item appears in the following Collection(s)

  • Artigos [268]
    Artigos Técnico-científicos na área de Microbiologia

Show simple item record

Search DSpace


My Account