Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils
The paper describes the application of mono-dimensional high-resolution nuclear magnetic resonance (NMR) spectroscopy to extra virgin olive oil (EVOO) samples to extract the chemical composition reasonably featured by specific genotype (<i>cultivar</i>) and detailed environmental conditi...
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2025-05-01
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| author | Nicola Culeddu Archimede Rotondo Federico Nastasi Giovanni Bartolomeo Pierfrancesco Deiana Mario Santona Petros A. Tarantilis Giuseppe Pellicane Giovanna Loredana La Torre |
| author_facet | Nicola Culeddu Archimede Rotondo Federico Nastasi Giovanni Bartolomeo Pierfrancesco Deiana Mario Santona Petros A. Tarantilis Giuseppe Pellicane Giovanna Loredana La Torre |
| author_sort | Nicola Culeddu |
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| description | The paper describes the application of mono-dimensional high-resolution nuclear magnetic resonance (NMR) spectroscopy to extra virgin olive oil (EVOO) samples to extract the chemical composition reasonably featured by specific genotype (<i>cultivar</i>) and detailed environmental conditions (<i>terroir</i>). To achieve this goal, we designed a suitable spectroscopic protocol made up of four NMR experiments: (I) standard <sup>1</sup>H{<sup>13</sup>C}, (II) multiple pre-saturated <sup>1</sup>H{<sup>13</sup>C}, (III) <sup>1</sup>H selective excitation at 9.25 ppm, and (IV) <sup>13</sup>C{<sup>1</sup>H} acquisition. The three <sup>1</sup>H-NMR experiments (I–III) were merged into a single informative <sup>1</sup>H-NMR trace. This “Restored Intensities from Customized Crops” (RICC-NMR) allowed us to extract, in just one <sup>1</sup>H-NMR dataset, combined information about (a) main components, (b) less-represented components, and (c) minor but key-ruling secoiridoid species, respectively. Selected integrations of the RICC-NMR trace, together with selected integrations gathered from the <sup>13</sup>C-NMR profile, led, for each sample, to the quantification of variables able to sort out distinct EVOOs. In this paper, this original methodology was applied to rationalize eighteen EVOOs from Sicily and nineteen from Sardinia, which were chemometrically compared and discussed. |
| format | Article |
| id | doaj-art-150bcbdb81424ba885063f0f38ddcf6d |
| institution | DOAJ |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj-art-150bcbdb81424ba885063f0f38ddcf6d2025-08-20T03:14:31ZengMDPI AGFoods2304-81582025-05-011410180710.3390/foods14101807Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive OilsNicola Culeddu0Archimede Rotondo1Federico Nastasi2Giovanni Bartolomeo3Pierfrancesco Deiana4Mario Santona5Petros A. Tarantilis6Giuseppe Pellicane7Giovanna Loredana La Torre8CNR—Istituto di Chimica Biomolecolare (ICB), Traversa La Crucca 3, Loc. Baldinca, Li Punti, 07040 Sassari, ItalyDepartment of Biomedical and Dental Sciences and Morpho-Functional Imaging (BIOMORF), University of Messina, 98168 Messina, ItalyDipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali (CHIBIOFARAM), Università di Messina, 98166 Messina, ItalyDepartment of Biomedical and Dental Sciences and Morpho-Functional Imaging (BIOMORF), University of Messina, 98168 Messina, ItalyDipartimento di Agraria, Università degli Studi di Sassari, 07100 Sassari, ItalyDipartimento di Agraria, Università degli Studi di Sassari, 07100 Sassari, ItalyLaboratory of Chemistry, Department of Science, Agricultural University of Athens, 75 Iera Odos, 118 55 Athens, GreeceDepartment of Biomedical and Dental Sciences and Morpho-Functional Imaging (BIOMORF), University of Messina, 98168 Messina, ItalyDepartment of Biomedical and Dental Sciences and Morpho-Functional Imaging (BIOMORF), University of Messina, 98168 Messina, ItalyThe paper describes the application of mono-dimensional high-resolution nuclear magnetic resonance (NMR) spectroscopy to extra virgin olive oil (EVOO) samples to extract the chemical composition reasonably featured by specific genotype (<i>cultivar</i>) and detailed environmental conditions (<i>terroir</i>). To achieve this goal, we designed a suitable spectroscopic protocol made up of four NMR experiments: (I) standard <sup>1</sup>H{<sup>13</sup>C}, (II) multiple pre-saturated <sup>1</sup>H{<sup>13</sup>C}, (III) <sup>1</sup>H selective excitation at 9.25 ppm, and (IV) <sup>13</sup>C{<sup>1</sup>H} acquisition. The three <sup>1</sup>H-NMR experiments (I–III) were merged into a single informative <sup>1</sup>H-NMR trace. This “Restored Intensities from Customized Crops” (RICC-NMR) allowed us to extract, in just one <sup>1</sup>H-NMR dataset, combined information about (a) main components, (b) less-represented components, and (c) minor but key-ruling secoiridoid species, respectively. Selected integrations of the RICC-NMR trace, together with selected integrations gathered from the <sup>13</sup>C-NMR profile, led, for each sample, to the quantification of variables able to sort out distinct EVOOs. In this paper, this original methodology was applied to rationalize eighteen EVOOs from Sicily and nineteen from Sardinia, which were chemometrically compared and discussed.https://www.mdpi.com/2304-8158/14/10/1807NMR analysisRICC-NMRextra virgin olive oil<i>Olea europaea</i><sup>1</sup>H{<sup>13</sup>C}-NMRmetabolic profile |
| spellingShingle | Nicola Culeddu Archimede Rotondo Federico Nastasi Giovanni Bartolomeo Pierfrancesco Deiana Mario Santona Petros A. Tarantilis Giuseppe Pellicane Giovanna Loredana La Torre Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils Foods NMR analysis RICC-NMR extra virgin olive oil <i>Olea europaea</i> <sup>1</sup>H{<sup>13</sup>C}-NMR metabolic profile |
| title | Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils |
| title_full | Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils |
| title_fullStr | Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils |
| title_full_unstemmed | Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils |
| title_short | Restored Intensities from Customized Crops of NMR Experiments (RICC-NMR) to Gain Better Insight on Chemometrics of Sicilian and Sardinian Extra Virgin Olive Oils |
| title_sort | restored intensities from customized crops of nmr experiments ricc nmr to gain better insight on chemometrics of sicilian and sardinian extra virgin olive oils |
| topic | NMR analysis RICC-NMR extra virgin olive oil <i>Olea europaea</i> <sup>1</sup>H{<sup>13</sup>C}-NMR metabolic profile |
| url | https://www.mdpi.com/2304-8158/14/10/1807 |
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