Document Detail


Bioaccumulation and bioavailability of copper and zinc on mineral-enriched mycelium of Grifola frondosa.
MedLine Citation:
PMID:  20132038     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Grifola frondosa is an edible and medicinal mushroom. The bioaccumulation and potential biovailability of Cu and Zn were studied to obtain mycelium with potential properties as a food dietary supplement. Mycelia grown in the presence of nonmycotoxic concentrations of 100 and 200 ppm of Cu or 25 and 50 ppm of Zn accumulated 200-322 ppm and 267-510 ppm of Cu or Zn, respectively. When these enriched metal mycelia were subjected in vitro to a simulated gastrointestinal digestion, the solubility in these digestive fluids was 642-669 ppm and 102-530 ppm, which represent 32-33% and 0.7-3.5% of the recommended daily intake (RDI) for Cu and Zn, respectively, in 1 g of mycelium. These results are discussed in relation to the RDI values exhibited by two commercial supplements, and arguments are given on the potential use of these mineral-enriched mycelia in capsules (in the case of Cu-enriched mycelia), in food preparations, and also as a component of cosmetic mixtures.
Authors:
Débora Figlas; Micaela Oddera; Néstor Curvetto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medicinal food     Volume:  13     ISSN:  1557-7600     ISO Abbreviation:  J Med Food     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-23     Completed Date:  2010-10-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812512     Medline TA:  J Med Food     Country:  United States    
Other Details:
Languages:  eng     Pagination:  469-75     Citation Subset:  IM    
Affiliation:
Laboratory of Biotechnology of Edible and Medicinal Mushrooms, CERZOS (CONICET), Universidad Nacional del Sur, Bahía Blanca, Argentina. dfiglas@criba.edu.ar
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MeSH Terms
Descriptor/Qualifier:
Biological Availability
Biological Transport
Copper / pharmacokinetics*
Dietary Supplements
Digestion*
Functional Food*
Grifola / metabolism*
Humans
Mycelium / metabolism*
Nutrition Policy
Solubility
Zinc / pharmacokinetics*
Chemical
Reg. No./Substance:
7440-50-8/Copper; 7440-66-6/Zinc

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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