Data/hora: 25/06/2024 01:17:44

Biblioteca(s): | Embrapa Milho e Sorgo.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 11/12/2012
Data da última atualização: | 18/05/2017
Autoria: | NAKAJIMA, V. M.; COSTA, N. M. B.; MARTINO, H. S. D.; QUEIROZ, V. A. V.; GUIMARAES, P. E. de O.; OLIVEIRA, P. V.
Afiliação: | VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS.
Título: | Iron bioavailability of different maize genotypes developed in a breeding program: in vitro and in vivo studies.
Ano de publicação: | 2012
Fonte/Imprenta: | Archivos Latinoamericanos de Nutrición, Caracas, v. 62, n. 2, p. 103-111, 2012.
Idioma: | Inglês
Conteúdo: | The objective of this study was to evaluate iron bioavailability of maize genotypes, and analyze the correlation between in vitro and in vivo methods. Dialysable iron was analyzed in 13 genotypes from which 5 were selected for the biological assay. Mean iron content of the genotypes (n=13) was 17.93±2.93 mg kg-1. Phytate varied from 0.77% to 1.03%; phytate: iron molar ratio from 30.64 to 55.41; and soluble iron from 13.17 to 39.63%. The highest value for dialysable iron was 19.14%. In the biological assay, the control group, that received ferrous sulphate, did not present significant difference between the genotypes for Hb gain, Hb gain per gram of iron consumed and HRE. Hb gain did not present a significant correlation with in vitro assay. However, there were positive correlations varying from 0.653 to 0.809. The maize genotypes evaluated presented a good bioavailability since the genotypes showed the same result in hemoglobin gain than control group.
Palavras-Chave: | Biodisponibilidade de ferro; Ensaio biológico; Método de diálise.
Thesagro: | Zea mays.
Categoria do assunto: | --
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (24980-1) - UPC - AP - DD -  -  -  - DIS