Determination of total concentration and bioaccessible fraction of metals in tomatoes and their derivatives by MIP OES

Author(s)

Bonemann, Daisa Hakbart ^[1] ; Beduhn Luckow, Ana Claudia ^[1] ; Pereira, Camila Correa ^[1] ; de Souza, Alexander Ossanes ^[1] ; Cadore, Solange ^[2] ; Nunes, Adriane Medeiros ^[1] ; Vieira, Mariana Antunes ^[1] ; Ribeiro, Anderson Schwingel ^[1]

Affiliation

^[1] Fed Univ Pelotas UFPeI, Grad Program Chem, Chem Metrol Lab LabMeQui, Capiio Do Leao, RS - Brazil

^[2] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil

• Document type: Journal article
• Source: Journal of Food Composition and Analysis; v. 96, MAR 2021.
• Web of Science Citations: 1

Abstract

This study presents information about the total concentration and bioaccessible fraction of barium (Ba), calcium (Ca), cadmium (Cd), copper (Cu), iron (Fe), mercury (Hg), potassium (K), lithium (Li), magnesium (Mg), manganese (Mn), molybdenum (Mo), lead (Pb) and zinc (Zn) in different cultivars of tomato (Gaucho, Paulista, Italiano and Cherry) and their derivatives (sauce and tomato extract). The determinations were performed by microwave induced plasma optical emission spectrometry (MIP OES). The bioaccessible fraction of the elements was evaluated through in vitro digestion process and the concentrations varied between 25 and 100 % for Cu, Fe, Mn and Zn, depending on the type of tomato sample and its derivatives. The total concentrations for all the elements studied were below the recommendation of dietary guidelines. For Ba, only the Italiano sample presented 22 % of bioaccessibility. For Pb, the highest percentage of bioaccessible fraction was found in sauces and tomato extracts. The elements Cd, Hg, Li and Mo presented concentrations lower than the limit of detection for the bioaccessibility method. (AU)

• FAPESP's process: 08/57808-1 - National Institute of Advanced Analytical Science and Technology
• Grantee: Celio Pasquini
• Support Opportunities: Research Projects - Thematic Grants