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Food Analytical Methods

, Volume 9, Issue 2, pp 362–369 | Cite as

Monitoring the Authenticity of Organic Grape Juice via Chemometric Analysis of Elemental Data

  • Endler Marcel Borges
  • Dietrich A. Volmer
  • Evandro Brandelero
  • Jane Mary Lafayette Neves Gelinski
  • Matheus Gallimberti
  • Fernando BarbosaJr
Article

Abstract

Elemental determination was carried out on 36 grape juice samples (19 organic and 17 ordinary), with the goal of identifying significant differences between the two types of juice for classification purposes. Inductively coupled plasma-mass spectrometry was used for the determination of 24 elements, Al, As, Ba, Ca, Cd, Ce, Co, Cr, Cu, Fe, La, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Se, Sn, Ti, V, and Zn. Ba, Ce, La, Mg, P, Pb, Rb, Sn, and Ti concentrations were found to be higher in organic versus ordinary samples, while Na and Va concentrations were higher in ordinary versus organic samples. The remaining investigated elements exhibited statistically equivalent concentration levels in both types of samples. Principal component analysis (PCA) and soft independent modeling of class analogy (SIMCA) statistical techniques of the elemental fingerprints were readily able to discriminate organic from ordinary samples and can be used as alternative methods for adulteration evaluation.

Keywords

Chemometrics ICP-MS Multi-element fingerprinting Organic food Quality control Grape juice 

Notes

Acknowledgments

The authors acknowledge financial support and the fellowship from Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP: 12/03465-1). Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq 150098/2014-6) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). DAV acknowledges general research support by the Alfried Krupp von Bohlen und Halbach-Stiftung.

Compliance with Ethics Requirements

The paper describes the first application of ICP-MS to the discrimination of organic and regular grape juices based on the concentration levels of 24 chemical elements (both macro and microelements). Statistical analysis was performed by PCA and SIMCA, which provided a robust approach for evaluation of authenticity of organic grape juice samples. The approach presented here can be used to evaluate the organic juice authenticity.

This described research paper is original, has not been published before and is not under consideration for publication elsewhere. All authors have agreed to the submission to Food Analytical Methods.

Conflict of Interest

The described research was performed with financial support from some foundations (fellowships + research grant), as indicated in the Acknowledgments. The authors also indicate that there are no conflicts of interest with respect to this publication.

Research Involving Human Participants and/or Animals

Human and/or animal were not used in this work.

Informed Consent

Human and/or animal were not used in this work.

Supplementary material

12161_2015_191_MOESM1_ESM.xlsx (20 kb)
ESM 1 (XLSX 19 kb)

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Endler Marcel Borges
    • 1
    • 2
  • Dietrich A. Volmer
    • 3
  • Evandro Brandelero
    • 2
  • Jane Mary Lafayette Neves Gelinski
    • 2
  • Matheus Gallimberti
    • 4
  • Fernando BarbosaJr
    • 4
  1. 1.Departamento de QuímicaUniversidade Regional de Blumenau (FURB)BlumenauBrazil
  2. 2.Núcleo BiotecnológicoUniversidade do Oeste de Santa CatarinaVideiraBrazil
  3. 3.Institute of Bioanalytical ChemistrySaarland UniversitySaarbrückenGermany
  4. 4.Laboratório de Toxicologia e Essencialidade de Metais, Faculdade de Ciências Farmacêuticas de Ribeirão PretoUniversidade de São PauloRibeirão PretoBrazil

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