منابع مشابه
Phytate levels in diverse rat tissues: influence of dietary phytate.
Phytate (inositol hexaphosphate; InsP6) was determined in rat tissues fed on diets with different phytate contents, using a GC-mass detection methodology that permitted the evaluation of the total amount of this substance present in such tissues. The highest InsP6 concentrations were found in brain 5.89 x 10(-2)(SE 5.7 x 10(-3)) mg/g DM), whereas the concentrations detected in kidneys, liver an...
متن کاملInteraction of calcium and phytate in broiler diets. 2. Effects on total and soluble phosphorus excretion.
Dietary Ca has been reported to influence the amount of phytate excreted from broilers and affect the solubility of P in excreta. To address the effects of dietary Ca and phytate on P excretion, 12 dietary treatments were fed to broilers from 16 to 21 d of age. Treatments consisted of 3 levels of phytate P (0.10, 0.24, and 0.28%) and 4 levels of Ca (0.47, 0.70, 0.93, and 1.16%) in a randomized ...
متن کاملDietary calcium does not exacerbate phytate inhibition of zinc absorption by women from conventional diets.
BACKGROUND Although calcium inhibits zinc bioavailability in rats, especially from high-phytate diets, the effect of calcium on zinc absorption by humans from practical diets remains unclear. OBJECTIVE The objective was to test the inhibitory effect of dietary calcium, in Western diets with high and low phytate content, on zinc absorption. DESIGN Using a 2 x 2 factorial design, zinc absorpt...
متن کاملAbsorption of calcium from tortilla meals prepared from low-phytate maize.
BACKGROUND Calcium fortification of maize has been achieved for millennia in Central America by the process of nixtamalization. Bioavailability of calcium is, however, compromised by phytate, which is present in large quantities in maize kernels and is only modestly reduced by nixtamalization. OBJECTIVE The objective was to compare the absorption of calcium from tortilla meals prepared from l...
متن کاملThe Ionization of Calcium, Magnesium, and Strontium Citrates*
Since the postulation by Greenwald (1) of a citrate-like substance in blood, capable of holding calcium in a non-ionized form, the behavior of calcium in the presence of citrate has received considerable attention from investigators primarily interested in the state of calcium in the living organism. The subject has also assumed considerable importance in the field of the chemistry of milk. The...
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ژورنال
عنوان ژورنال: Nature
سال: 1940
ISSN: 0028-0836,1476-4687
DOI: 10.1038/145745a0