Selenium Compounds Biotransformed by Mushrooms: Not Only Dietary Sources, But Also Toxicity Mediators

Author(s): Olga Tsivileva*, Alla Perfileva.

Journal Name: Current Nutrition & Food Science

Volume 13 , Issue 2 , 2017

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Abstract:

Background: The trace element selenium (Se) is essential nutrition mineral. Selenium deficiencies in the human and animal organism are recognized worldwide to be related to a number of pathologies. However, at higher Se concentrations, harmful consequences occur: generation of free radicals, DNA double-strand breaks, and apoptosis in cells. Provided that the recommended dietary intakes are not met, Se-rich foods are to be included in the diet.

Limitation of Se Studies: The disparate opinions on the widely discussed chemopreventive capability of selenium have to be addressed. Of paramount importance is a better understanding of the Se significance to the DNA preservation and cancer. The contradictions found might be related to poor understanding of controversial mechanisms involved in selenium biochemistry. Therefore, a rich area of selenium explorations could be considered as two fields: Se as a dietary component and Se as a toxic agent.

Selenized Fungi: Mushrooms and yeasts have attracted a number of researchers in food and pharmaceuticals. Mushroom-based foods enriched with selenocompounds could be a convenient source of Se to balance the deficiency. Therewith the safety and efficacy factors favor the organic forms of Se.

Conclusion: The consequences of selenium toxicity, bioavailability of selenium content, the importance and possibilities for increasing selenium content of mushroom mycelia, a fate of organoselenium xenobiotics in the basidiomycetes culture are discussed in this review.

Keywords: Selenium, essentiality, bioavailability, supplementation, Se-fortified food, Se-yeast, selenized mycelium, macrobasidiomycetes.

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Article Details

VOLUME: 13
ISSUE: 2
Year: 2017
Page: [82 - 96]
Pages: 15
DOI: 10.2174/1573401313666170117144547
Price: $58

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