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Determination of trace elements and stable carbon isotope ratios in virgin olive oils from Western Turkey to authenticate geographical origin with a chemometric approach

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Abstract

In this study, trace element contents and stable carbon isotope ratios of olive oils were determined to evaluate their potential as authentication parameters. Forty-nine virgin olive oil samples (VOOs) from six different locations of the western part of Turkey (İzmir, Manisa, Aydın, Muğla, Bursa and Edremit Bay) were analysed with ICP-MS and EA-IRMS. V, Mn, Ni, Cu, Ba, Na, K, Ca, Fe, Mg, Pb, As, Co, Cr and Zn were found in the olive oil samples and determined δ13C stable istope ratios. Data from the olive oil samples were compiled and classified with chemometric approach. The results showed that there is significant potential to successfully authenticate olive oils according to Fe and Zn on the Manisa and δ13C have dominant effect on the location of Edremit Bay. As a result, the outcome of this study could be used to identify the geographical origin of olive oils especially for the Manisa and Edremit Bay locations.

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Acknowledgements

This work was supported by the EGE University Drug Research and Pharmacokinetic Development and Applied Center (ARGEFAR). The authors thank all ARGEFAR’s Environmental and Food (ÇEG) laboratories personnel for their help.

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Authors and Affiliations

  1. Institute on Drug Abuse, Toxicology and Pharmaceutical Science, BATI INSTITUE, Ege University, 35100, Bornova, Izmir, Turkey

    Z. Pinar Gumus

  2. Drug Research and Pharmacokinetic Development and Applied Center, ARGEFAR, Ege University, 35100, Bornova, Izmir, Turkey

    Z. Pinar Gumus, Veysel U. Celenk, Serkan Tekin, Onur Yurdakul & Hasan Ertas

  3. Department of Chemistry, Faculty of Science, Ege University, 35040, Bornova, Izmir, Turkey

    Hasan Ertas

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  1. Z. Pinar Gumus
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  2. Veysel U. Celenk
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Correspondence to Hasan Ertas.

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Gumus, Z.P., Celenk, V.U., Tekin, S. et al. Determination of trace elements and stable carbon isotope ratios in virgin olive oils from Western Turkey to authenticate geographical origin with a chemometric approach. Eur Food Res Technol 243, 1719–1727 (2017). https://doi.org/10.1007/s00217-017-2876-4

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  • DOI: https://doi.org/10.1007/s00217-017-2876-4

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