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Geographical characterization of italian extra virgin olive oils using high-field (1)H NMR spectroscopy.
J Agric Food Chem. 2001 Jun; 49(6):2687-96.JA

Abstract

1H high-field nuclear magnetic resonance (NMR) was used to analyze 216 extra virgin olive oils collected in three years (1996, 1997, and 1998) in different Italian areas in order to evaluate the potential contribution of this technique to the geographical characterization of olive oils. A statistical procedure performed on the intensity of selected NMR peaks has been proposed. Tree clustering analysis of NMR data performed without any a priori hypothesis showed the existence of reliable parameters able to group the olive oils according to the location of olive oil production. Linear discriminant analysis applied to selected NMR parameters of olive oils of the same year of production allowed the grouping of samples according to their geographical origin with only very few errors. Moreover, a satisfactory grouping is reached by combining the NMR data of olive oils from two different years (1996 and 1997). Operating on appropriate sampling, a careful analysis of data yielded the conclusion that the place of olive production could be singled out as a discriminating factor regardless of the cultivars from which the olive oils are derived.

Authors+Show Affiliations

Facoltà di Scienze, Università degli Studi del Molise, MM.FF.NN.,Via Mazzini 8, 86170 Isernia, Italy. nmr@mlib.cnr.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11409952

Citation

Mannina, L, et al. "Geographical Characterization of Italian Extra Virgin Olive Oils Using High-field (1)H NMR Spectroscopy." Journal of Agricultural and Food Chemistry, vol. 49, no. 6, 2001, pp. 2687-96.
Mannina L, Patumi M, Proietti N, et al. Geographical characterization of italian extra virgin olive oils using high-field (1)H NMR spectroscopy. J Agric Food Chem. 2001;49(6):2687-96.
Mannina, L., Patumi, M., Proietti, N., Bassi, D., & Segre, A. L. (2001). Geographical characterization of italian extra virgin olive oils using high-field (1)H NMR spectroscopy. Journal of Agricultural and Food Chemistry, 49(6), 2687-96.
Mannina L, et al. Geographical Characterization of Italian Extra Virgin Olive Oils Using High-field (1)H NMR Spectroscopy. J Agric Food Chem. 2001;49(6):2687-96. PubMed PMID: 11409952.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Geographical characterization of italian extra virgin olive oils using high-field (1)H NMR spectroscopy. AU - Mannina,L, AU - Patumi,M, AU - Proietti,N, AU - Bassi,D, AU - Segre,A L, PY - 2001/6/21/pubmed PY - 2001/10/26/medline PY - 2001/6/21/entrez SP - 2687 EP - 96 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 49 IS - 6 N2 - 1H high-field nuclear magnetic resonance (NMR) was used to analyze 216 extra virgin olive oils collected in three years (1996, 1997, and 1998) in different Italian areas in order to evaluate the potential contribution of this technique to the geographical characterization of olive oils. A statistical procedure performed on the intensity of selected NMR peaks has been proposed. Tree clustering analysis of NMR data performed without any a priori hypothesis showed the existence of reliable parameters able to group the olive oils according to the location of olive oil production. Linear discriminant analysis applied to selected NMR parameters of olive oils of the same year of production allowed the grouping of samples according to their geographical origin with only very few errors. Moreover, a satisfactory grouping is reached by combining the NMR data of olive oils from two different years (1996 and 1997). Operating on appropriate sampling, a careful analysis of data yielded the conclusion that the place of olive production could be singled out as a discriminating factor regardless of the cultivars from which the olive oils are derived. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/11409952/Geographical_characterization_of_italian_extra_virgin_olive_oils_using_high_field__1_H_NMR_spectroscopy_ L2 - https://doi.org/10.1021/jf001408i DB - PRIME DP - Unbound Medicine ER -