Zinc distribution in structural components of high kernel‑zinc maize and its retention after milling

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cg.authorship.typesCGIAR multi-centre
cg.contributor.affiliationInternational Food Policy Research Institute
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.contributor.affiliationHarvestPlus
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.donorGates Foundation
cg.contributor.programAcceleratorBetter Diets and Nutrition
cg.contributor.programAcceleratorBreeding for Tomorrow
cg.coverage.regionAfrica
cg.coverage.regionSub-Saharan Africa
cg.creator.identifierVictor Taleon: 0000-0002-8316-0733
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.foodres.2025.116830
cg.identifier.projectIFPRI - Innovation Policy and Scaling Unit
cg.identifier.projectIFPRI - HarvestPlus
cg.identifier.publicationRankA
cg.isijournalISI Journal
cg.issn0963-9969
cg.issueOctober 2025
cg.journalFood Research International
cg.reviewStatusPeer Review
cg.subject.impactAreaNutrition, health and food security
cg.volume217
dc.contributor.authorTaleon, Victor
dc.contributor.authorPalacios-Rojas, Natalia
dc.contributor.authorDollah, Yusuf
dc.contributor.authorRosales, Aldo
dc.contributor.authorKalejaiye, Olatundun
dc.contributor.authorMenkir, Abebe
dc.date.accessioned2025-06-13T18:33:55Z
dc.date.available2025-06-13T18:33:55Z
dc.identifier.urihttps://hdl.handle.net/10568/175090
dc.titleZinc distribution in structural components of high kernel‑zinc maize and its retention after millingen
dcterms.abstractHigh kernel‑zinc maize (HKZM) has the potential to contribute to addressing zinc deficiency in regions with high maize consumption, particularly in Sub-Saharan Africa. However, milling HKZM may lead to loss of zinc when removing the pericarp and embryo. This study evaluated the zinc distribution in kernel components of HKZM maize grown in different environments, and examined how milling affected its zinc concentration. The zinc concentration in HKZM lines was 27.0–30.7 μg g−1 while in conventional maize it was 19.5–22.6 μg g−1. Zinc in maize endosperm represented 20.5 to 28.2 % of the total kernel zinc while that in the embryo represented 68.1 to 75.7 %. HKZM retained 43 % of its kernel zinc after milling, resulting in flour with 5 μg g−1 higher zinc concentration compared to regular maize flour. Environmental factors had a significant effect on kernel zinc concentrations. Maize grain from commercial mills had 21 μg g−1 zinc, with zinc losses of 22 % to 65 % during milling, resulting in flours with 6–10 μg g−1 of zinc. While HKZM shows promise in alleviating zinc deficiency, its anticipated impact may be limited in regions where refined maize is frequently used for making foods. The development of maize varieties with higher zinc concentration in the endosperm, along with promoting increased consumption of less refined maize products can boost zinc intake for deficient populations.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.available2025-06-13
dcterms.bibliographicCitationTaleon, Victor; Palacios-Rojas, Natalia; Dollah, Yusuf; Rosales, Aldo; Kalejaiye, Olatundun; and Menkir, Abebe. 2025. Zinc distribution in structural components of high kernel‑zinc maize and its retention after milling. Food Research International 217(October 2025): 116830. https://doi.org/10.1016/j.foodres.2025.116830
dcterms.extent116830
dcterms.issued2025-10
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevier
dcterms.subjectzinc
dcterms.subjectmaize
dcterms.subjectmilling
dcterms.subjectnutrient deficiencies
dcterms.typeJournal Article

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