The Inorganic Component as a Possible Marker for Quality and for Authentication of the Hazelnut's Origin.

Publisher: MDPI Country of Publication: Switzerland NLM ID: 101238455 Publication Model: Electronic Cited Medium: Internet ISSN: 1660-4601 (Electronic) Linking ISSN: 16604601 NLM ISO Abbreviation: Int J Environ Res Public Health Subsets: MEDLINE

Original Publication: Basel : MDPI, c2004-

Corylus/*chemistry ; Nuts/*chemistry; Biomarkers/chemistry ; Italy ; Pilot Projects ; Spectrum Analysis ; Trace Elements/analysis ; Turkey

The inorganic component of hazelnuts was considered as a possible marker for geographical allocation and for the assessment of technological impact on their quality. The analyzed samples were Italian hazelnuts of the cultivar Tonda Gentile Romana and Turkish hazelnuts of the cultivars Tombul , Palaz and Çakildak . The hazelnuts were subjected to different drying procedures and different conservative methods. The concentration of 13 elements, namely Ba, Ca, Cu, Fe, K, Mg, Mn, Na, Ni, P, Sn, Sr and Zn, were quantified by inductively coupled plasma optical emission spectroscopy (ICP-OES). All the samples were previously digested in a microwave oven. Before proceeding with the analysis of the samples, the whole procedure was optimized and tested on a certified reference material. The results show that the inorganic component: (i) can represent a fingerprint, able to identify the geographical origin of hazelnuts, becoming an important quality marker for consumer protection; (ii) is strongly influenced by the treatments undergone by the investigated product during all the processing stages. A pilot study was also carried out on hazelnuts of the cultivar Tonda Gentile Trilobata Piemontese , directly harvested from the plant during early development to maturity and analyzed to monitor the element concentration over time.
Competing Interests: The authors declare no conflict of interest.

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Keywords: authentication; chemometric treatments; hazelnuts; marker; metals; technological impact

0 (Biomarkers)
0 (Trace Elements)

Date Created: 20200116 Date Completed: 20200824 Latest Revision: 20240328

20240329

PMC7014338

10.3390/ijerph17020447

31936629