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Gourmet Table Salts: The Mineral Composition Showdown.

Authors
  • Di Salvo, Eleonora1
  • Tardugno, Roberta2
  • Nava, Vincenzo1
  • Naccari, Clara3
  • Virga, Antonio4
  • Salvo, Andrea5
  • Corbo, Filomena2
  • Clodoveo, Maria Lisa2
  • Cicero, Nicola1, 6
  • 1 Departement of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98168 Messina, Italy. , (Italy)
  • 2 Department of Pharmacy-Drug Sciences, University of Bari, 70121 Bari, Italy. , (Italy)
  • 3 Department of Health Sciences, University "Magna Græcia" of Catanzaro, 88100 Catanzaro, Italy. , (Italy)
  • 4 Department of Agricultural, Food and Forestry Sciences, University of Palermo, 90121 Palermo, Italy. , (Italy)
  • 5 Department of Chemistry and Drug Technology, University of Roma La Sapienza, 00185 Roma, Italy. , (Italy)
  • 6 Science4life srl, University of Messina, 98168 Messina, Italy. , (Italy)
Type
Published Article
Journal
Toxics
Publication Date
Aug 15, 2023
Volume
11
Issue
8
Identifiers
DOI: 10.3390/toxics11080705
PMID: 37624210
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Table salts with their specialty flake size, textures, flavors, and colors can be considered a gastronomy niche food already increasing in demand worldwide. Being unrefined, they can contain trace elements potentially both healthy and toxic. In this study, 12 mineral elements (Al, Ca, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, and Zn) in 10 different salts commercially available in southern Italy namely, Atlantic grey, Baule volante, Guerande, Hawaiian pink, Hawaiian black, Himalayan pink, Maldon, Mozia, Persian blue, and smoked salts were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and thermal decomposition amalgamation-atomic absorption spectrophotometry (TDA-AAS). The concentration of mineral elements was variable according to the type of salt and its geographical origin. Co, Cr, Cu, Hg, Pb, and Se levels were tolerable and Al, Ca, Fe, Mn, Ni, and Zn ranged significantly among the samples. Persian Blue and Atlantic Grey salts showed elevated levels of Fe and Zn; their intake can be helpful in some specific conditions. Nevertheless, Ni levels were high in Persian Blue and Smoked salts. Pb exceeded the maximum level in all samples. Additional monitoring analyses of mineral contents in table salts are recommended for human health.

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