Phytate × Calcium/Zinc Molar Ratios: Are They Predictive of Zinc Bioavailability?

ELIZABETH J. FORDYCE, RICHARD M. FORBES, KELLY R. ROBBINS, JOHN W. ERDMAN

Research output: Contribution to journalArticle

Abstract

The utility of the phytate/zinc and phytate × calcium/zinc molar ratios for predicting zinc bioavailability from processed soybean foods was investigated. Weight gain and bone zinc accumulation in rats fed various soy protein products were plotted against the calculated molar ratios. The phytate × calcium/zinc ratio was a better predictor of zinc bioavailability in similarly processed products than was the phytate/ zinc ratio. However, in some cases the phytate × calcium/zinc ratio was not effective since some processing procedures apparently altered binding of phytic acid to minerals and other food components.

Original languageEnglish (US)
Pages (from-to)440-444
Number of pages5
JournalJournal of food science
Volume52
Issue number2
DOIs
StatePublished - Mar 1987

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Phytic Acid
phytic acid
Biological Availability
bioavailability
Zinc
zinc
calcium
Food
Soybean Proteins
protein products
soy protein
Soybeans
Weight Gain
Minerals
weight gain
bones
soybeans
minerals
Bone and Bones
rats

ASJC Scopus subject areas

  • Food Science

Cite this

Phytate × Calcium/Zinc Molar Ratios : Are They Predictive of Zinc Bioavailability? / FORDYCE, ELIZABETH J.; FORBES, RICHARD M.; ROBBINS, KELLY R.; ERDMAN, JOHN W.

In: Journal of food science, Vol. 52, No. 2, 03.1987, p. 440-444.

Research output: Contribution to journalArticle

FORDYCE, ELIZABETH J. ; FORBES, RICHARD M. ; ROBBINS, KELLY R. ; ERDMAN, JOHN W. / Phytate × Calcium/Zinc Molar Ratios : Are They Predictive of Zinc Bioavailability?. In: Journal of food science. 1987 ; Vol. 52, No. 2. pp. 440-444.
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