The total concentration and bioaccessible fraction of nutrients in purees, instant cereals and infant formulas by ICP OES: A study of Dietary Recommended Intakes and the importance of using a standardized in vitro digestion method

Autor(es)

da Silva, Emanueli do Nascimento ; de Farias, Leticia Onofre ; Cadore, Solange

• Tipo de documento: Artigo Científico
• Fonte: Journal of Food Composition and Analysis; v. 68, p. 8-pg., 2018-05-01.

Resumo

Innumerable food products and supplements for infants and children are commercially available, so the total concentration of Ca, Cu, Fe, K, Mg, Mn, and Zn and the bioaccessibility of Cu, Fe, Mg, Mn, and Zn in fourteen of these products were investigated. Analysis was performed by inductively coupled plasma optical emission spectroscopy after microwave oxidative digestion for total concentration, and a standardized in vitro digestion method was used for the bioaccessible fraction. The total concentration and the bioaccessibility varied greatly according to the sample type (fruit or salty purees, instant cereals and infant formulas). According to the Dietary Reference Intake (DRI), the infant formulas and fruit purees showed the highest and lowest contributions, respectively, when the sample amount ingested in a single meal was considered. As expected, the bioaccessibility was lowest for Fe, intermediate for Cu and Mn and highest for Mg. The bioaccessibility values were 28-38% (Cu), 0-23% (Fe), 41-63% (Mg), 24-60% (Mn), and 22-91% (Zn), with the exception of infant formulas, which showed higher bioaccessibility values (> 60%) for all elements. Therefore, a diet based on these industrially prepared food products and supplements may provide an adequate intake of minerals. (AU)

• Processo FAPESP: 13/26855-2 - Avaliação da fração bioacessível e da biodisponibilidade de nutrientes e contaminantes em hortaliças
• Beneficiário: Solange Cadore
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/57808-1 - Instituto Nacional de Ciências e Tecnologias Analíticas Avançadas - INCTAA
• Beneficiário: Celio Pasquini
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 12/15020-4 - Bioacessibilidade e biodisponibilidade de nutrientes e elementos tóxicos em alface (Lactuca sativa)
• Beneficiário: Emanueli Do Nascimento da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/15425-0 - Biofortificação de selênio em alface: estudo de bioacessibilidade e especiação de selênio na parte comestível da planta
• Beneficiário: Emanueli Do Nascimento da Silva
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado