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Elemental concentration of tomato paste and respective packages through particle-induced X-ray emission

Debastiani, Rafaela; Iochims dos Santos, Carla Eliete; Maciel Ramos, Mateus; Sobrosa Souza, Vanessa; Yoneama, Maria Lucia; Amaral, Livio; Ferraz Dias, Johnny

The elemental concentrations of three brands of Brazilian tomato paste packed in cans and Tetra Pak® cardboard boxes were determined through the Particle-Induced X-ray Emission (PIXE) technique. The elements Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Cu, Zn, Br and Rb were identified in the tomato pastes. The metallic cannisters are characterized primarily by the presence of Fe and Sn, while several elements including Al, Cl, Ti, Fe and Zn showed up in Tetra Pak® boxes. The elemental concentrations of tomato paste varied significantly among different brands and packages. The major elements present in tomato paste are Na, Cl and K with concentrations ranging from 1700 mg/kg up to 7500 mg/kg, while trace elements like Br and Rb had average concentrations around 2 mg/kg. Tomato paste from different brands and packages stored for long periods of time were evaluated as well. Canned tomato paste showed distinct rising and decreasing trends of Fe and Al concentrations as a function of the storage time respectively. Possible transfer mechanisms are discussed.

DOI: 10.1016/j.jfca.2020.103770
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 04.2021
Sprache Englisch
Identifikator ISSN: 0889-1575
KITopen-ID: 1000128356
HGF-Programm 43.31.01 (POF IV, LK 01) Multifunctionality Molecular Design & Material Architecture
Erschienen in Journal of food composition and analysis
Verlag Elsevier
Band 97
Seiten Article no: 103770
Schlagwörter Tomato paste, PIXE,RBS, Elemental composition, Food analysis, Food composition, Package composition
Nachgewiesen in Scopus
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