Abstract
The effect of phytate on the solubility of Al3+ and Pb2+ has been investigated in vitro at 37 degrees C across the pH ranges 3-7 (Pb2+) and 2-5 (Al3+). For both ions minimum solubility was found when the initial metal ion: phytate ratio was in the range 5:1-3:1 across the whole pH range. For Al3+ the solubility rose sharply either side of these ratios whereas for Pb2+ solubility rose only slowly as the metal ion: phytate ratio was reduced. Hg2+ was totally soluble under all conditions tested. At pH 7 Ca2+ solubility was found to be at a minimum when the initial Ca:phytate ratio was 5:1 irrespective of the initial Ca2+ concentration.
| Original language | English |
|---|---|
| Pages (from-to) | 507-509 |
| Number of pages | 3 |
| Journal | Journal of the Science of Food and Agriculture |
| Volume | 67 |
| Issue number | 4 |
| Publication status | Published - Apr 1995 |
Keywords
- PHYTATE
- METAL IONS
- SOLUBILITY
- PH
- PHYTIC ACID
- INVITRO