Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/905727
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dc.contributor.authorQUEIROZ, V. A. V.pt_BR
dc.contributor.authorGUIMARAES, P. E. de O.pt_BR
dc.contributor.authorQUEIROZ, L. R.pt_BR
dc.contributor.authorGUEDES, E. de O.pt_BR
dc.contributor.authorVASCONCELOS, V. D. B.pt_BR
dc.contributor.authorGUIMARAES, L. J.pt_BR
dc.contributor.authorRIBEIRO, P. E. de A.pt_BR
dc.contributor.authorSCHAFFERT, R. E.pt_BR
dc.date.accessioned2011-11-11T11:11:11Zpt_BR
dc.date.accessioned2011-11-11T11:11:11Zpt_BR
dc.date.available2011-11-11T11:11:11Zpt_BR
dc.date.available2011-11-11T11:11:11Zpt_BR
dc.date.created2011-11-11pt_BR
dc.date.issued2011pt_BR
dc.identifier.citationCiência e Tecnologia de Alimentos, Campinas, v. 31, n. 3, p. 577-583, jul./set. 2011.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/905727pt_BR
dc.descriptionThe aim of this study was to characterize the Zn and Fe availability by phytic acid/Zn and phytic acid/Fe molar ratios, in 22 tropical maize inbred lines with different genetic backgrounds. The Zn and Fe levels were determined by atomic absorption spectrophotometry and the P through colorimetry method. Three screening methods for phytic acid (Phy) analysis were tested and one, based on the 2,2’-bipyridine reaction, was select. There was significant variability in the contents of zinc (17.5 to 42 mg.kg-1), iron (12.2 to 36.7 mg.kg-1), phosphorus (230 to 400 mg.100 g-1), phytic acid (484 to 1056 mg.100 g-1), phytic acid P (140 to 293 mg.100 g-1) and available-P (43.5 to 199.5 mg.100 g-1), and in the available-P/total-P ratio (0.14 to 0.50), Phy/Zn (18.0 to 43.5) and Phy/Fe (16.3 to 45.5) molar ratios. Lines 560977, 560978 and 560982 had greater availability of Zn and lines 560975, 560977, 561010 and 5610111 showed better Fe availability. Lines 560975, 560977 and 560978 also showed better available-P/total-P ratio. Thus, the lines 560975, 560977 and 560978 were considered to have the potential for the development of cultivars of maize with high availability of Fe and/or Zn.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBiofortificaçãopt_BR
dc.titleIron and zinc availability in maize lines.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-09-28T11:11:11Zpt_BR
dc.subject.thesagroMilhopt_BR
dc.subject.thesagroZea Mayspt_BR
riaa.ainfo.id905727pt_BR
riaa.ainfo.lastupdate2017-09-28 -03:00:00pt_BR
dc.identifier.doi10.1590/S0101-20612011000300005pt_BR
dc.contributor.institutionVALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; LUCIANO RODRIGUES QUEIROZ, UNIFEMM; LAURO JOSE MOREIRA GUIMARAES, CNPMS; PAULO EDUARDO DE AQUINO RIBEIRO, CNPMS; ROBERT EUGENE SCHAFFERT, CNPMS.pt_BR
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