Aluminum content and effect of in vitro digestion on bioaccessible fraction in cereal-based baby foods

Autor(es)

de Paiva, Esther Lima ^{[1, 2]} ; Medeiros, Camila ^[2] ; Milani, Raquel Fernanda ^[2] ; Morgano, Marcelo Antonio ^[2] ; Lima Pallone, Juliana Azevedo ^[1] ; Arisseto-Bragotto, Adriana Pavesi ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Fac Food Engn, UNICAMP, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil

^[2] Inst Food Technol ITAL, Ave Brasil 2880, BR-13070178 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Food Research International; v. 131, MAY 2020.
• Citações Web of Science: 0

Resumo

The aim of this work was to determine the total concentration and the effect of in vitro digestion on the bioaccessible fraction of aluminum (Al) in 35 different cereal-based baby food samples and estimate the exposure to this element considering the consumption of this product. Total Al content was determined by inductively coupled plasma optical emission spectrometry after oxidative microwave digestion. An in vitro digestion method was applied and optimized to evaluate the bioaccessible fraction. The methods performance was efficient for both approached analysis and presented limits of detection and quantitation of 53 mu g kg(-1) and 89 mu g kg(-1), respectively. Total concentration and bioaccessibility varied according to the product composition (rice, oat, wheat, barley, corn, multicereal and fruit). Multicereals and fruit-based (plum) cereals presented the highest total Al concentrations (8.82 mg kg(-1) and 7.49 mg kg(-1), respectively), whilst lower values were observed for corn and rice flour cereals (0.92 mg kg(-1) and 1.09 mg kg(-1), respectively). The bioaccessible fraction varied from 1.5% to 10.4% in the evaluated samples. Exposure to Al was estimated and compared with the Provisional Tolerable Weekly Intake (PTWI) of 2 mg kg(-1) body weight. The results showed that the daily consumption of three portions of cereals contributes up to 10.48% of the PTWI, when considering the total Al concentration reported in this study. (AU)

• Processo FAPESP: 17/11334-8 - Estudo do teor total e da bioacessibilidade de alumínio em alimentos infantis
• Beneficiário: Marcelo Antonio Morgano
• Modalidade de apoio: Auxílio à Pesquisa - Regular