Use of in vitro digestion method and theoretical c... - BV FAPESP
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Use of in vitro digestion method and theoretical calculations to evaluate the bioaccessibility of Al, Cd, Fe and Zn in lettuce and cole by inductively coupled plasma mass spectrometry

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Autor(es):
da Silva, Emanueli do Nascimento [1] ; Heerdt, Gabriel [1] ; Cidade, Mirla [1, 2] ; Pereira, Catarinie Diniz [1] ; Morgon, Nelson Henrique [1] ; Cadore, Solange [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil
[2] Univ Fed Roraima, Dept Chem, Boa Vista, RR - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Microchemical Journal; v. 119, p. 152-158, MAR 2015.
Citações Web of Science: 21
Resumo

Theoretical calculations of the binding energies of metal-polyphenols and metal-cellulose, as well as the hydration energies of metal-polyphenols were used to support the results obtained for the bioaccessibility of aluminium, cadmium, iron and zinc from four types of lettuce and one type of cole that were evaluated using an in vitro gastrointestinal digestion model and inductively coupled plasma-mass spectrometry. The bioaccessibility of Al found in the vegetables were less than 11% of the total Al content, whereas Cd exhibited average bioaccessibility of approximately 14% for the fresh samples and 41% considering the dried vegetables studied. However, the results indicated average bioaccessibility of 35% and 26% for Zn and average bioaccessibility of 19% and 21% for Fe in fresh and dried samples, respectively. The low bioaccessibility of Al is due to its strong binding with all of the vegetable components, whereas the low bioaccessibility of Fe and Zn are due to their interactions with phytates. Cd was observed to be the most bioaccessible element in the dried samples because of its weak interaction with other compenents in the vegetables. (C) 2014 Elsevier B.V. All rights reserved. (AU)

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: 08/57808-1 - Instituto Nacional de Ciências e Tecnologias Analíticas Avançadas - INCTAA
Beneficiário:Celio Pasquini
Modalidade de apoio: Auxílio à Pesquisa - Temático
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