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Extra-Virgin Olive Oils from Nine Italian Regions: An (1)H NMR-Chemometric Characterization
Extra-virgin olive oil (383 samples; EVOOs) of three consecutive harvesting years from nine Italian regions were collected and submitted to an (1)H NMR-chemometric protocol to characterize the samples according to their origin (geographical area and variety). A more complete assignment of the olive...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523492/ https://www.ncbi.nlm.nih.gov/pubmed/30987207 http://dx.doi.org/10.3390/metabo9040065 |
Sumario: | Extra-virgin olive oil (383 samples; EVOOs) of three consecutive harvesting years from nine Italian regions were collected and submitted to an (1)H NMR-chemometric protocol to characterize the samples according to their origin (geographical area and variety). A more complete assignment of the olive oil (1)H spectrum in CDCl(3) and DMSOd(6) 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. |
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