Publication detail

Multivariate modelling techniques applied to metabolomic, elemental and isotopic fingerprints for the verification of regional geographical origin of Austrian carrots

Zora Jandric, Anastassiya Tchaikovsky, Andreas Zitek, Tim Causon, Vaclav Stursa, Thomas Prohaska, Stephan Hann

Original Title

Multivariate modelling techniques applied to metabolomic, elemental and isotopic fingerprints for the verification of regional geographical origin of Austrian carrots

Type

journal article in Web of Science

Language

English

Original Abstract

An exploratory study for verifying regional geographical origin of carrots from specific production regions in Austria (“Genussregionen”) was performed by combining chemical fingerprinting methods, namely n(86Sr)/n(87Sr) isotope amount ratios, multi-elemental and metabolomic pattern. Chemometric classification models were built on individual and combined datasets using (data-driven) soft independent modelling of class analogies and (orthogonal) projections to latent structures-discriminant analysis to characterise and differentiate carrots grown in five regions in Austria. A predictive ability of 97% or better (depending on the classification technique) was obtained using combined Sr isotope amount ratios and multi-elemental data. The use of data fusion strategies, in particular the mid-level option (fusion of selected variables from the different analytical platforms), allowed highly efficient (99–100%, except soft independent modelling of class analogy with 97%) and correct classification of carrot samples.

Keywords

Carrots;Fingerprinting;Metabolomics;Multi-element;Origin;Strontium isotopes;Chemometric classification

Authors

Zora Jandric, Anastassiya Tchaikovsky, Andreas Zitek, Tim Causon, Vaclav Stursa, Thomas Prohaska, Stephan Hann

Released

27. 8. 2020

ISBN

0308-8146

Periodical

FOOD CHEMISTRY

Number

338

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

10

Pages count

10

URL

https://www.sciencedirect.com/science/article/pii/S0308814620317866

BibTex

@article{BUT165039,
  author="Václav {Štursa} and Thomas {Prohaska}",
  title="Multivariate modelling techniques applied to metabolomic, elemental and isotopic fingerprints for the verification of regional geographical origin of Austrian carrots",
  journal="FOOD CHEMISTRY",
  year="2020",
  number="338",
  pages="1--10",
  doi="10.1016/j.foodchem.2020.127924",
  issn="0308-8146",
  url="https://www.sciencedirect.com/science/article/pii/S0308814620317866"
}