Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties
Twenty elite early-maturing (75−90 days) tropical maize varieties grown in three diverse agroecologies in West Africa were evaluated to identify varieties with high kernel-Fe and -Zn and bioavailable Fe levels. Bioavailable iron was assessed using an in vitro digestion/Caco-2 cell model. Significant...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
American Chemical Society
2003
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/96353 |
| _version_ | 1855538708405551104 |
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| author | Oikeh, S.O. Menkir, A. Maziya-Dixon, B.B. Welch, R. Glahn, Raymond P. |
| author_browse | Glahn, Raymond P. Maziya-Dixon, B.B. Menkir, A. Oikeh, S.O. Welch, R. |
| author_facet | Oikeh, S.O. Menkir, A. Maziya-Dixon, B.B. Welch, R. Glahn, Raymond P. |
| author_sort | Oikeh, S.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Twenty elite early-maturing (75−90 days) tropical maize varieties grown in three diverse agroecologies in West Africa were evaluated to identify varieties with high kernel-Fe and -Zn and bioavailable Fe levels. Bioavailable iron was assessed using an in vitro digestion/Caco-2 cell model. Significant (P < 0.001) varietal differences were observed in mean kernel-Fe and -Zn levels. The ranges were 15.5−19.1 mg kg-1 for Fe and 16.5−20.5 mg kg-1 for Zn. Genetic component accounted for 34% of the total variation in kernel-Zn and for 11% of the variation in kernel-Fe levels. Mean bioavailable Fe in varieties ranged between 4% below and 49% above the reference control variety. A significant negative relationship was detected between kernel-P concentration and bioavailable Fe (R = −0.36; P < 0.004; n = 60). Two varieties, ACR90POOL16-DT and ACR86TZESR-W, were identified as the most promising for further evaluation to determine their efficacy as improved sources of iron in target populations. |
| format | Journal Article |
| id | CGSpace96353 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2003 |
| publishDateRange | 2003 |
| publishDateSort | 2003 |
| publisher | American Chemical Society |
| publisherStr | American Chemical Society |
| record_format | dspace |
| spelling | CGSpace963532024-05-15T05:12:09Z Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties Oikeh, S.O. Menkir, A. Maziya-Dixon, B.B. Welch, R. Glahn, Raymond P. iron bioavailability zinc maize early maturation Twenty elite early-maturing (75−90 days) tropical maize varieties grown in three diverse agroecologies in West Africa were evaluated to identify varieties with high kernel-Fe and -Zn and bioavailable Fe levels. Bioavailable iron was assessed using an in vitro digestion/Caco-2 cell model. Significant (P < 0.001) varietal differences were observed in mean kernel-Fe and -Zn levels. The ranges were 15.5−19.1 mg kg-1 for Fe and 16.5−20.5 mg kg-1 for Zn. Genetic component accounted for 34% of the total variation in kernel-Zn and for 11% of the variation in kernel-Fe levels. Mean bioavailable Fe in varieties ranged between 4% below and 49% above the reference control variety. A significant negative relationship was detected between kernel-P concentration and bioavailable Fe (R = −0.36; P < 0.004; n = 60). Two varieties, ACR90POOL16-DT and ACR86TZESR-W, were identified as the most promising for further evaluation to determine their efficacy as improved sources of iron in target populations. 2003-06-01 2018-08-09T06:40:31Z 2018-08-09T06:40:31Z Journal Article https://hdl.handle.net/10568/96353 en Limited Access American Chemical Society Oikeh, S.O., Menkir, A., Maziya-Dixon, B., Welch, R. & Glahn, R.P. (2003). Assessment of concentrations of iron and zinc and bioavailable iron in grains of early-maturing tropical maize varieties. Journal of Agricultural and Food Chemistry, 51(12), 3688-3694. |
| spellingShingle | iron bioavailability zinc maize early maturation Oikeh, S.O. Menkir, A. Maziya-Dixon, B.B. Welch, R. Glahn, Raymond P. Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title | Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title_full | Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title_fullStr | Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title_full_unstemmed | Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title_short | Assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| title_sort | assessment of concentrations of iron and zinc and bioavailable iron in grains of earlymaturing tropical maize varieties |
| topic | iron bioavailability zinc maize early maturation |
| url | https://hdl.handle.net/10568/96353 |
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