Abstract

AbstractThe effect of phytate on the solubility of some minerals (Mg2+, Ca2+, Fe3+, Cu2+ and Zn2+) has been investigated in vitro at 37°C, under pH conditions which may be encountered in the duodenum. The observed solubility trends as a function of phytate concentration and pH result from the formation of complexes having different stoichiometries and solubilities as the conditions are varied. Possible structures for these complexes are proposed. In view of the ever‐increasing concern over cadmium toxicity and a recent report which indicates that intestinal absorption of Cd2+ is affected by phytate, this ion was included as part of this study.

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