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Open AccessArticle

Extra-Virgin Olive Oils from Nine Italian Regions: An 1H NMR-Chemometric Characterization

1
Dipartimento di Chimica e Tecnologia del Farmaco, Sapienza Università di Roma, 00185 Roma, Italy
2
Istituto di Metodologie Chimiche, Laboratorio di Risonanza Magnetica “Annalaura Segre”, CNR, Monterotondo 00015, Roma, Italy
3
Dipartimento di Chimica, Sapienza Università di Roma, 00185 Roma, Italy
*
Authors to whom correspondence should be addressed.
Metabolites 2019, 9(4), 65; https://doi.org/10.3390/metabo9040065
Received: 18 February 2019 / Revised: 29 March 2019 / Accepted: 29 March 2019 / Published: 3 April 2019
(This article belongs to the Special Issue NMR-based Metabolomics and Its Applications Volume 2)
Extra-virgin olive oil (383 samples; EVOOs) of three consecutive harvesting years from nine Italian regions were collected and submitted to an 1H NMR-chemometric protocol to characterize the samples according to their origin (geographical area and variety). A more complete assignment of the olive oil 1H spectrum in CDCl3 and DMSOd6 was reported identifying 24-methylencycolartanol. A single classification model provided the discrimination of EVOOs among the three geographical macro-areas (North, Islands, Center-South), whereas a hierarchical approach based on breaking the overall classification problem into a series of smaller linear discriminant analysis (LDA) sub-models was tested to differentiate olive oils according to their geographical regions. Specific compounds responsible for olive oil characterization were identified. View Full-Text
Keywords: extra virgin olive oil (EVOO); 1H-NMR; linear discriminant analysis (LDA) extra virgin olive oil (EVOO); 1H-NMR; linear discriminant analysis (LDA)
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MDPI and ACS Style

Ingallina, C.; Cerreto, A.; Mannina, L.; Circi, S.; Vista, S.; Capitani, D.; Spano, M.; Sobolev, A.P.; Marini, F. Extra-Virgin Olive Oils from Nine Italian Regions: An 1H NMR-Chemometric Characterization. Metabolites 2019, 9, 65. https://doi.org/10.3390/metabo9040065

AMA Style

Ingallina C, Cerreto A, Mannina L, Circi S, Vista S, Capitani D, Spano M, Sobolev AP, Marini F. Extra-Virgin Olive Oils from Nine Italian Regions: An 1H NMR-Chemometric Characterization. Metabolites. 2019; 9(4):65. https://doi.org/10.3390/metabo9040065

Chicago/Turabian Style

Ingallina, Cinzia; Cerreto, Antonella; Mannina, Luisa; Circi, Simone; Vista, Silvia; Capitani, Donatella; Spano, Mattia; Sobolev, Anatoly P.; Marini, Federico. 2019. "Extra-Virgin Olive Oils from Nine Italian Regions: An 1H NMR-Chemometric Characterization" Metabolites 9, no. 4: 65. https://doi.org/10.3390/metabo9040065

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