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    Assessment of iron bioavailability from twenty elite latematuring tropical maize varieties using an in vitro digestion/Caco2 cell model

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    S04ArtOikehAssessmentInthomNodev.pdf (94.33Kb)
    Date
    2004
    Author
    Oikeh, S.O.
    Menkir, A.
    Maziya-Dixon, B.
    Welch, R.M.
    Glahn, R.P.
    Type
    Journal Article
    Journal Article
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    Abstract/Description
    An in vitro digestion/Caco-2 cell model was used to assess iron bioavailability of twenty elite late-maturing tropical maize varieties grown in three diverse agroecologies in West and Central Africa (WCA). Kernel-iron concentration of the varieties, averaged across locations, varied from 19.2 to 24.4 mg kg−1, while mean kernel-zinc concentration ranged between 19.4 and 24.6 mg kg−1. Significant differences in iron bioavailability were observed among varieties, but the environment had no significant effect. Mean bioavailable iron ranged between 14% below and 43% above the reference control variety, TZB-SR. Variety DMR-LSR-Y with the highest concentrations of kernel-iron and -zinc of 24–25 mg kg−1 across the three locations had a similar quantity of bioavailable iron as the reference control, TZB-SR. In the long run this variety could be potentially effective in reducing iron deficiency because of its high kernel-iron. The most promising varieties were Mid-altitude STR synthetic and ACR91SUWAN-1-SRC1. They had kernel-iron and -zinc levels of 22–24 mg kg−1 and bioavailable iron 24–36% higher than the reference control, TZB-SR. Additional research is necessary to determine if the increases in kernel-iron concentration and bioavailable iron observed in this study can significantly improve the iron status of individuals in WCA at risk for iron deficiency.
    https://doi.org/10.1002/jsfa.1805
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4203
    Digital Object Identifier (DOI)
    https://doi.org/10.1002/jsfa.1805
    IITA Subjects
    Maize
    Agrovoc Terms
    Maize; Bioavailability
    Regions
    Africa; West Africa
    Countries
    Nigeria; Burkina Faso
    Collections
    • Journal and Journal Articles4835
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