Bioavailability of copper bound to dietary fiber in mice and rats

Journal Article · · J. Food Sci.; (United States)

DOI:https://doi.org/10.1111/j.1365-2621.1987.tb14098.x· OSTI ID:6062006

Rockway, S W; Brannon, P M; Weber, C W

The bioavailability of copper (Cu) was compared in mice or rats fed diets containing wheat bran-bound Cu and adequate Cu (unbound) or deficient Cu with cellulose or wheat bran. Cardiac and hepatic Cu content were comparable in mice fed bran-bound or adequate Cu and greater than mice fed deficient Cu. Cardiac Cu content was comparable in rats fed bran-bound Cu and adequate Cu and greater than rats fed deficient Cu. Hepatic Cu content, however, was less in rats fed bran-bound Cu than adequate Cu and greater in both than deficient Cu. Both rats and mice utilized dietary Cu bound to wheat bran, suggesting that mineral-fiber interactions may not decrease bioavailability when dietary mineral is adequate. Tissue Cu content in Cu-deficiency was lower in animals fed wheat bran compared to cellulose, suggesting that the type of fiber may exacerbate effects of mineral deficiency.

• Research Organization: Univ. of Arizona, Tucson
• OSTI ID: 6062006
• Journal Information: J. Food Sci.; (United States), Journal Name: J. Food Sci.; (United States) Vol. 52:5; ISSN JFDSA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL AVAILABILITY
BIOLOGICAL EFFECTS
BIOLOGICAL LOCALIZATION
CARBOHYDRATES
CELLULOSE
COPPER
DIET
ELEMENTS
MAMMALS
METALS
MICE
NUTRITIONAL DEFICIENCY
ORGANIC COMPOUNDS
POLYSACCHARIDES
RATS
RODENTS
SACCHARIDES
TRANSITION ELEMENTS
VERTEBRATES