The Commission Regulation (EC) Regulation N. 488/2014, established the concentration limits for cadmium in specific products based on cocoa and chocolate products as from January 2019. Based on this information there is a need to determine ultratrace levels of elements that might be presents in cocoa and chocolate products. In this work, the concentrations of Arsenic, Antimony, Cadmium, Chromium, Lead, Selenium and Vanadium were evaluated in cocoa powder and chocolate by the validation of an ICP-MS method. Good selectivity/specificity, recovery, repeatability and within-laboratory reproducibility, LOD, LOQ, range of linearity, standard measurement uncertainty parameters for method validation were achieved, in accordance with Commission Regulation. The cocoa powder revealed the maximum metal concentrations of 0.303 ± 0.035 mg/kg for cadmium, 1.228 ± 0.146 mg/kg for lead and 0.094 ± 0.013 mg/kg for arsenic. A significant difference was found between cocoa powder and chocolate samples (p <.05).

Toxic metal levels in cocoa powder and chocolate by ICP-MS method after microwave-assisted digestion

D'ascenzi, Carlo;
2018-01-01

Abstract

The Commission Regulation (EC) Regulation N. 488/2014, established the concentration limits for cadmium in specific products based on cocoa and chocolate products as from January 2019. Based on this information there is a need to determine ultratrace levels of elements that might be presents in cocoa and chocolate products. In this work, the concentrations of Arsenic, Antimony, Cadmium, Chromium, Lead, Selenium and Vanadium were evaluated in cocoa powder and chocolate by the validation of an ICP-MS method. Good selectivity/specificity, recovery, repeatability and within-laboratory reproducibility, LOD, LOQ, range of linearity, standard measurement uncertainty parameters for method validation were achieved, in accordance with Commission Regulation. The cocoa powder revealed the maximum metal concentrations of 0.303 ± 0.035 mg/kg for cadmium, 1.228 ± 0.146 mg/kg for lead and 0.094 ± 0.013 mg/kg for arsenic. A significant difference was found between cocoa powder and chocolate samples (p <.05).
2018
Lo Dico, Gianluigi Maria; Galvano, Fabio; Dugo, Giacomo; D'Ascenzi, Carlo; Macaluso, Andrea; Vella, Antonio; Giangrosso, Giuseppe; Cammilleri, Gaetano; Ferrantelli, Vincenzo
File in questo prodotto:
File Dimensione Formato  
2018 Toxic metal in cocoa powder.pdf

solo utenti autorizzati

Tipologia: Versione finale editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 262.02 kB
Formato Adobe PDF
262.02 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
2018 Preprint - Toxic metal levels in cocoa powder and chocolate by ICP.docx

accesso aperto

Tipologia: Documento in Pre-print
Licenza: Creative commons
Dimensione 127.84 kB
Formato Microsoft Word XML
127.84 kB Microsoft Word XML Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/885331
Citazioni
  • ???jsp.display-item.citation.pmc??? 8
  • Scopus 69
  • ???jsp.display-item.citation.isi??? 64
social impact