Data/hora: 05/06/2024 17:06:40

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 03/07/2017
Data da última atualização: | 24/08/2017
Autoria: | GOMES, M. J. C.; INFANTE, R. A.; SILVA, B. P. da; MOREIRA, M. E. de C.; DIAS, D. M.; LOPES, R. de C. S. O.; TOLEDO, R. C. L.; QUEIROZ, V. A. V.; MARTINO, H. S. D.
Afiliação: | Mariana Juste Contin Gomes, UFV; Rufino Antonio Infante, UFV; Barbara Pereira da Silva, UFV; Maria Eliza de Castro Moreira, UFV; Desirrê Moraes Dias, UFV; Rita de Cassia Stampini Oliveira Lopes, UFV; Renata Celi Lopes Toledo, UFV; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; Hercia Stampini Duarte Martino, UFV.
Título: | Sorghum extrusion process combined with biofortified sweet potato contributed for high iron bioavailability in Wistar rats.
Ano de publicação: | 2017
Fonte/Imprenta: | Journal of Cereal Science, London, v. 75, p. 213-219, 2017.
DOI: | 10.1016/j.jcs.2017.03.017
Idioma: | Inglês
Conteúdo: | This study aimed to evaluate the effect of sorghum and sweet potato on the bioavailability of iron, gene expression of proteins involved in iron metabolism and the plasma antioxidant capacity in animals fed with whole sorghum grains processed by dry heat or extrusion, combined or not with sweet potato flour with high content of carotenoids. Five experimental groups were tested (n ¼ 7): dry heat sorghum flour (DS); extruded sorghum flour (ES); whole sorghum flour þ sweet potato flour (DS þ SP); extruded sorghum flour þ sweet potato flour (ES þ SP) and positive control (FS). The evaluations included: hemoglobin gain, hemoglobin regeneration efficiency, gene expression of divalente metal transporter 1 (DMT-1), duodenal citochroma B (DcytB), ferroportin, hephaestin, transferrin and ferritin and total plasma antioxidant capacity (TAC). The ES þ SP group showed higher (p < 0.05) expression of DcytB, ferroportin and hephaestin when compared to the control group. The DS group showed high (p < 0.05) expression of DMT-1 and the ES showed high mRNA expression of transferrin and ferritin. The changes in the sorghum physicochemical properties from extrusion process reduced the iron and phytate content, and increased the gene expression of proteins involved in iron metabolism, improving iron bioavailability. The combination of sweet potato and sorghum flour (dry or extruded) improved the iron capture and total antioxidant capacity, probably due to the presence of b-carotene and antioxidant compounds.
Palavras-Chave: | Ferritina; Ferroportina.
Thesagro: | Antioxidante; Batata doce.
Categoria do assunto: | --
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (27797-1) - UPC - AP - DD -  -  -  - DIS