Anti-nutrient Composition and Bioavailability Prediction as Exemplified by Calcium, Iron and Zinc in Melocia corchorifolia Leaves

Authors

  • L.G. Hassan Department of Pure and Applied Chemistry, Usmanu Danfodiyo University, Sokoto, Nigeria
  • K.J. Umar Department of Pure and Applied Chemistry, Usmanu Danfodiyo University, Sokoto, Nigeria
  • S.M. Dangoggo Department of Pure and Applied Chemistry, Usmanu Danfodiyo University, Sokoto, Nigeria
  • A.S. Maigandi Department of Animal Science, Faculty of Agriculture, Usmanu Danfodiyo University, Sokoto, Nigeria

DOI:

https://doi.org/10.3923/pjn.2011.23.28

Keywords:

Antinutrient, bioavailability, calcium, iron, Melocia corchorifolia, vegetables, zinc

Abstract

Plants are the major sources of microelements to populace of the developing world. However, presence of antinutritional factors limit their optimal utilization. In this paper, antinutritional content and their effect on bioavailability of Ca, Fe and Zn in Melocia corchorifolia leaves was investigated. The result indicated that the plant leaves had high level of tannin (4,689.06±2.60 mg/100 g dry weight, DW). The concentration of other antinutritional factors per/100 g DW is as follows: phytate (88.57 mg), total oxalate (585.00 mg), soluble oxalate (217.50 mg), cyanide (16.02 mg) and nitrate (74.41 mg). The predicted Ca, Fe and Zn bioavailability showed that [Oxalate]/[Ca] and [Oxalate]/[(Ca + Mg)] are below the critical level of 2.5 known to impair calcium bioavailability. Furthermore, [Phytate]/[Ca], [Phytate]/[Fe] and [Phytate]/[Zn] are below the critical level of 0.5, 0.4 and 1.5 respectively. However, [Ca][Phytate]/[Zn], 16.72, is above the critical level of 0.5, which indicates significant effect of phytate on Zn bioavailability. From the results it can be concluded that M. corchorifolia leaves could be an important bioresource for Ca and Fe but not for Zn considering the predicted bioavailability.

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Published

15.12.2010

Issue

Vol. 10 No. 1 (2011)

Section

Research Article

License

Copyright (c) 2010 Asian Network for Scientific Information

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

How to Cite

1.
Hassan L, Umar K, Dangoggo S, Maigandi A. Anti-nutrient Composition and Bioavailability Prediction as Exemplified by Calcium, Iron and Zinc in Melocia corchorifolia Leaves. Pak. J. Nutr. [Internet]. 2010 Dec. 15 [cited 2025 Jul. 27];10(1):23–28. Available from: https://pjnonline.org/pjn/article/view/1354