Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses

In the present research, the applicability of stable isotope (δ13C, δ15N, δ34S, δ18O) and multi-element (P, S, Cl, K, Ca, Si, Zn, Br, Rb, Sr) data for determining the geographical origin of garlic (Allium sativum L.) at the scale of Slovenia was examined within the framework of EU “ISO-FOOD” project...

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Main Authors: Anja Mahne Opatic, Marijan Nečemer, David Kocman, Sonja Lojen
Format: Article
Language:English
Published: Slovenian Chemical Society 2017-12-01
Series:Acta Chimica Slovenica
Subjects:
Online Access:https://journals.matheo.si/index.php/ACSi/article/view/3476
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author Anja Mahne Opatic
Marijan Nečemer
David Kocman
Sonja Lojen
author_facet Anja Mahne Opatic
Marijan Nečemer
David Kocman
Sonja Lojen
author_sort Anja Mahne Opatic
collection DOAJ
description In the present research, the applicability of stable isotope (δ13C, δ15N, δ34S, δ18O) and multi-element (P, S, Cl, K, Ca, Si, Zn, Br, Rb, Sr) data for determining the geographical origin of garlic (Allium sativum L.) at the scale of Slovenia was examined within the framework of EU “ISO-FOOD” project for food quality, safety and traceability. Slovenia is a rather small country (20273 km2) with significant geological and biological diversity. Garlic, valued for its medicinal properties, was collected from Slovenian farms with certified organic production and analyzed by Elemental Analyzer Isotope Ratio Mass Spectrometry combined with Energy Dispersive X- ray Fluorescence Spectrometry. Multivariate discriminant analysis, revealed a distinction between four Slovenian macro-regions: Alpine, Dinaric, Mediterranean and Pannonian. The model was validated through a leave-10%, 20% and 25% out cross validation. The overall success rate of correctly reclassified samples was 77% (on average), indicating that the model and the proposed methodology could be a promising tool for rapid, inexpensive and robust screening to control the provenance of garlic samples.
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spelling doaj.art-66014b52ad604acab9bc929f57ed683d2022-12-21T23:57:25ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552017-12-016441048105510.17344/acsi.2017.3476508Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analysesAnja Mahne OpaticMarijan NečemerDavid KocmanSonja LojenIn the present research, the applicability of stable isotope (δ13C, δ15N, δ34S, δ18O) and multi-element (P, S, Cl, K, Ca, Si, Zn, Br, Rb, Sr) data for determining the geographical origin of garlic (Allium sativum L.) at the scale of Slovenia was examined within the framework of EU “ISO-FOOD” project for food quality, safety and traceability. Slovenia is a rather small country (20273 km2) with significant geological and biological diversity. Garlic, valued for its medicinal properties, was collected from Slovenian farms with certified organic production and analyzed by Elemental Analyzer Isotope Ratio Mass Spectrometry combined with Energy Dispersive X- ray Fluorescence Spectrometry. Multivariate discriminant analysis, revealed a distinction between four Slovenian macro-regions: Alpine, Dinaric, Mediterranean and Pannonian. The model was validated through a leave-10%, 20% and 25% out cross validation. The overall success rate of correctly reclassified samples was 77% (on average), indicating that the model and the proposed methodology could be a promising tool for rapid, inexpensive and robust screening to control the provenance of garlic samples.https://journals.matheo.si/index.php/ACSi/article/view/3476GarlicGeographical originFood traceabilityStable isotopesElemental compositionSlovenia
spellingShingle Anja Mahne Opatic
Marijan Nečemer
David Kocman
Sonja Lojen
Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
Acta Chimica Slovenica
Garlic
Geographical origin
Food traceability
Stable isotopes
Elemental composition
Slovenia
title Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
title_full Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
title_fullStr Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
title_full_unstemmed Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
title_short Geographical origin characterization of Slovenian garlic using stable isotope and elemental composition analyses
title_sort geographical origin characterization of slovenian garlic using stable isotope and elemental composition analyses
topic Garlic
Geographical origin
Food traceability
Stable isotopes
Elemental composition
Slovenia
url https://journals.matheo.si/index.php/ACSi/article/view/3476
work_keys_str_mv AT anjamahneopatic geographicalorigincharacterizationofsloveniangarlicusingstableisotopeandelementalcompositionanalyses
AT marijannecemer geographicalorigincharacterizationofsloveniangarlicusingstableisotopeandelementalcompositionanalyses
AT davidkocman geographicalorigincharacterizationofsloveniangarlicusingstableisotopeandelementalcompositionanalyses
AT sonjalojen geographicalorigincharacterizationofsloveniangarlicusingstableisotopeandelementalcompositionanalyses