Relation Between In Vitro Availability of Minerals and Food Composition: A Mathematical Model

doi:10.1111/j.1365-2621.1993.tb06181.x

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Wiley InterScience

Journal of Food Science

Volume 58 Issue 6, Pages 1349 - 1355

Published Online: 26 Aug 2006

A Publication of the Institute of Food Technologists

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Relation Between In Vitro Availability of Minerals and Food Composition: A Mathematical Model

M. G. E. WOLTERS ¹ , H. B. DIEPENMAAT ² , R. J. J. HERMUS ³ A. G. J. VORAGEN ⁴

¹ Author Walters is with TNO Biotechnology & Chemistry Institute, Dept. of Biochemistry & Physical Chemistry, P.O. Box 360, 3700 AJ Zeist, The Netherlands. ² Author Diepenmaat is with TNO Institute of Environmental Sciences, Dept. of Environmental Chemistry, P.O. Box 6011, 2600 JA Delft, The Netherlands. ³ Author Hermus is with TNO Toxicology & hutrition Institute, P.O. Box 360, 3700 AJ Zeist, The Netherlands. ⁴ Author Voragen is with Wageningen Agricultural University, Department of Food Science, Biotechnion, P. O. Box 8129, 6700 EV Wageningen, The Netherlands.

We thank Marjan Bruinink, Jacques Dunnewijk, Grietje van den Heuvel, Paul Honcoop, Theo Moys, Piet Peereboom, Rick Schreuder, and Kess Verbeek for technical support. Addie Weak and Theo Bosman are acknowledged for support in development of ICAROS.

KEYWORDS

Minerals • trace-elements • availability • in vitro • mathematical model

ABSTRACT

A mathematical model was developed to describe the relative influence of phytic acid, dietary fiber components, oxalic acid, citric acid and ascorbic acid on in vitro availability of Ca, Mg, Fe, Cu and Zn. The model was based on a combination of interdependent Langmuir isotherms. Throughout a diverse set of food products (cereal products, fruits, vegetables and nuts), the mathematical model described and predicted in vitro availability of Ca, Mg, Fe and Zn well (r = 0.89, 0.87, 0.90 and 0.92 respectively). The model proved valuable in studying simultaneous effects of food components on in vitm availability of minerals and trace elements in foods. Therefore, the mathematical model should help relate in vitro simulations to in vivo experiments.

Ms received 10/1/92; revised 6/14/93; accepted 6/22/93.

DIGITAL OBJECT IDENTIFIER (DOI)

10.1111/j.1365-2621.1993.tb06181.x About DOI