Iron binding to nutrients containing fiber and phenytoin

Abstract 1. 1. Ascorbate and citrate extracted more iron than EDTA from pig foodstuffs ( P 2. 2. Glucose-saline solution (GSS) and ascorbate were less capable than citrate of extracting iron from maize tortilla ( P 3. 3. GSS extracted 16–32% of the whole iron contained in the studied foodstuffs; 30, 40 and 42% of the remaining iron in maize bran, wheat bran and pig feed was released with 0.1 M HCl. 40% of the remaining iron in pig's feed was released with 5% pepsin-0.1 M HCl while the iron of cereals required an additional extraction with 1% ascorbate. 4. 4. 5% pepsin-0.1 M HCl solutions released more iron as the protein content in the foodstuffs increased ( P 5. 5. Iron-extracted maize fibers (Ftw/Fe) bound significantly more iron than Ftc/Fe, FDA and FDN correspondingly ( P 6. 6. Phenytoin bound significantly more iron than total maize fibers both, with and without previous iron extraction ( P