EFFECT OF PHYTATE ON THE IN-VITRO SOLUBILITY OF AL3-DEGREES-C(, CA2+,HG2+ AND PB2+ AS A FUNCTION OF PH AT 37)

Authors
BULLOCK JI DUFFIN PA NOLAN KB SMITH TK
Citation
Ji. Bullock et al., EFFECT OF PHYTATE ON THE IN-VITRO SOLUBILITY OF AL3-DEGREES-C(, CA2+,HG2+ AND PB2+ AS A FUNCTION OF PH AT 37), Journal of the Science of Food and Agriculture, 67(4), 1995, pp. 507-509
Citations number
4
Categorie Soggetti
Agriculture,"Food Science & Tenology
Journal title
Journal of the Science of Food and Agriculture → ACNP
ISSN journal
00225142
Volume
67
Issue
4
Year of publication
1995
Pages
507 - 509
Database
ISI
SICI code
0022-5142(1995)67:4<507:EOPOTI>2.0.ZU;2-1
Abstract
The effect of phytate on the solubility of Al3+ and Pb2+ has been inve stigated 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 initia l metal ion: phytate ratio was in the range 5:1-3:1 across the whole p H range. For Al3+ the solubility rose sharply either side of these rat ios whereas for Pb2+ solubility rose only slowly as the metal ion: phy tate 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+ conc entration.