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Rapid direct analysis to discriminate geographic origin of extra virgin olive oils by flash gas chromatography electronic nose and chemometrics.
Food Chem. 2016 Aug 01; 204:263-273.FC

Abstract

At present, the geographical origin of extra virgin olive oils can be ensured by documented traceability, although chemical analysis may add information that is useful for possible confirmation. This preliminary study investigated the effectiveness of flash gas chromatography electronic nose and multivariate data analysis to perform rapid screening of commercial extra virgin olive oils characterized by a different geographical origin declared in the label. A comparison with solid phase micro extraction coupled to gas chromatography mass spectrometry was also performed. The new method is suitable to verify the geographic origin of extra virgin olive oils based on principal components analysis and discriminant analysis applied to the volatile profile of the headspace as a fingerprint. The selected variables were suitable in discriminating between "100% Italian" and "non-100% Italian" oils. Partial least squares discriminant analysis also allowed prediction of the degree of membership of unknown samples to the classes examined.

Authors+Show Affiliations

Department of Chemistry Ciamician, University of Bologna, Via Selmi, 2, 40126 Bologna, Italy. Electronic address: dora.melucci@unibo.it.Department of Agricultural and Food Sciences (DiSTAL), University of Bologna, P.zza Goidanich 60, 47521 Cesena, Italy. Electronic address: alessandra.bendini@unibo.it.Department of Agricultural and Food Sciences (DiSTAL), University of Bologna, P.zza Goidanich 60, 47521 Cesena, Italy. Electronic address: federica.tesini@unibo.it.Department of Agricultural and Food Sciences (DiSTAL), University of Bologna, P.zza Goidanich 60, 47521 Cesena, Italy. Electronic address: sara.barbieri@unibo.it.Department of Chemistry Ciamician, University of Bologna, Via Selmi, 2, 40126 Bologna, Italy. Electronic address: alessandro.zappi12@gmail.com.Department of Food Science and Nutrition, University of Barcelona, Food and Nutrition Torribera Campus, Av. Prat de la Riba, 171,, S.ta Coloma de Gramenet, Spain. Electronic address: stefaniavichi@ub.edu.Department of Food Science, University of Udine, Via Sondrio 2/a, 33100 Udine, Italy. Electronic address: lanfranco.conte@uniud.it.Department of Agricultural and Food Sciences (DiSTAL), University of Bologna, P.zza Goidanich 60, 47521 Cesena, Italy. Electronic address: tullia.gallinatoschi@unibo.it.

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

26988501

Citation

Melucci, Dora, et al. "Rapid Direct Analysis to Discriminate Geographic Origin of Extra Virgin Olive Oils By Flash Gas Chromatography Electronic Nose and Chemometrics." Food Chemistry, vol. 204, 2016, pp. 263-273.
Melucci D, Bendini A, Tesini F, et al. Rapid direct analysis to discriminate geographic origin of extra virgin olive oils by flash gas chromatography electronic nose and chemometrics. Food Chem. 2016;204:263-273.
Melucci, D., Bendini, A., Tesini, F., Barbieri, S., Zappi, A., Vichi, S., Conte, L., & Gallina Toschi, T. (2016). Rapid direct analysis to discriminate geographic origin of extra virgin olive oils by flash gas chromatography electronic nose and chemometrics. Food Chemistry, 204, 263-273. https://doi.org/10.1016/j.foodchem.2016.02.131
Melucci D, et al. Rapid Direct Analysis to Discriminate Geographic Origin of Extra Virgin Olive Oils By Flash Gas Chromatography Electronic Nose and Chemometrics. Food Chem. 2016 Aug 1;204:263-273. PubMed PMID: 26988501.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rapid direct analysis to discriminate geographic origin of extra virgin olive oils by flash gas chromatography electronic nose and chemometrics. AU - Melucci,Dora, AU - Bendini,Alessandra, AU - Tesini,Federica, AU - Barbieri,Sara, AU - Zappi,Alessandro, AU - Vichi,Stefania, AU - Conte,Lanfranco, AU - Gallina Toschi,Tullia, Y1 - 2016/02/23/ PY - 2015/09/07/received PY - 2016/01/11/revised PY - 2016/02/21/accepted PY - 2016/3/19/entrez PY - 2016/3/19/pubmed PY - 2016/11/1/medline KW - Extra virgin olive oil KW - FGC E-nose KW - Geographic origin KW - Headspace volatile compounds KW - Non-target analysis KW - PCA KW - PLS-DA KW - SPME/GC–MS SP - 263 EP - 273 JF - Food chemistry JO - Food Chem VL - 204 N2 - At present, the geographical origin of extra virgin olive oils can be ensured by documented traceability, although chemical analysis may add information that is useful for possible confirmation. This preliminary study investigated the effectiveness of flash gas chromatography electronic nose and multivariate data analysis to perform rapid screening of commercial extra virgin olive oils characterized by a different geographical origin declared in the label. A comparison with solid phase micro extraction coupled to gas chromatography mass spectrometry was also performed. The new method is suitable to verify the geographic origin of extra virgin olive oils based on principal components analysis and discriminant analysis applied to the volatile profile of the headspace as a fingerprint. The selected variables were suitable in discriminating between "100% Italian" and "non-100% Italian" oils. Partial least squares discriminant analysis also allowed prediction of the degree of membership of unknown samples to the classes examined. SN - 1873-7072 UR - https://www.unboundmedicine.com/medline/citation/26988501/Rapid_direct_analysis_to_discriminate_geographic_origin_of_extra_virgin_olive_oils_by_flash_gas_chromatography_electronic_nose_and_chemometrics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0308-8146(16)30300-4 DB - PRIME DP - Unbound Medicine ER -