A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra
A new NMR-based method for the discrimination of olive oils of any grade from seed oils and mixtures thereof was developed with the aim of allowing the verification of olive oil authenticity. Ten seed oils and seven monovarietal and blended extra virgin olive oils were utilized to develop a principa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/1/213 |
| _version_ | 1797498216137097216 |
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| author | Colleen L. Ray James A. Gawenis C. Michael Greenlief |
| author_facet | Colleen L. Ray James A. Gawenis C. Michael Greenlief |
| author_sort | Colleen L. Ray |
| collection | DOAJ |
| description | A new NMR-based method for the discrimination of olive oils of any grade from seed oils and mixtures thereof was developed with the aim of allowing the verification of olive oil authenticity. Ten seed oils and seven monovarietal and blended extra virgin olive oils were utilized to develop a principal component analysis (PCA) based analysis of <sup>1</sup>H NMR spectra to rapidly and accurately determine the authenticity of olive oils. Another twenty-eight olive oils were utilized to test the principal component analysis (PCA) based analysis. Detection of seed oil adulteration levels as low as 5% <i>v</i>/<i>v</i> has been shown using simple one-dimensional proton spectra obtained using a 400 MHz NMR spectrometer equipped with a room temperature inverse probe. The combination of simple sample preparation, rapid sample analysis, novel processing parameters, and easily interpreted results, makes this method an easily accessible tool for olive oil fraud detection by substitution or dilution compared to other methods already published. |
| first_indexed | 2024-03-10T03:30:16Z |
| format | Article |
| id | doaj.art-c8578388011745588dc6b2dbfa70d5bf |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T03:30:16Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-c8578388011745588dc6b2dbfa70d5bf2023-11-23T11:58:22ZengMDPI AGMolecules1420-30492021-12-0127121310.3390/molecules27010213A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR SpectraColleen L. Ray0James A. Gawenis1C. Michael Greenlief2Department of Chemistry, University of Missouri, 601 S. College Avenue, Columbia, MO 65211, USASweetwater Science Laboratories, Glasgow, MO 65264, USADepartment of Chemistry, University of Missouri, 601 S. College Avenue, Columbia, MO 65211, USAA new NMR-based method for the discrimination of olive oils of any grade from seed oils and mixtures thereof was developed with the aim of allowing the verification of olive oil authenticity. Ten seed oils and seven monovarietal and blended extra virgin olive oils were utilized to develop a principal component analysis (PCA) based analysis of <sup>1</sup>H NMR spectra to rapidly and accurately determine the authenticity of olive oils. Another twenty-eight olive oils were utilized to test the principal component analysis (PCA) based analysis. Detection of seed oil adulteration levels as low as 5% <i>v</i>/<i>v</i> has been shown using simple one-dimensional proton spectra obtained using a 400 MHz NMR spectrometer equipped with a room temperature inverse probe. The combination of simple sample preparation, rapid sample analysis, novel processing parameters, and easily interpreted results, makes this method an easily accessible tool for olive oil fraud detection by substitution or dilution compared to other methods already published.https://www.mdpi.com/1420-3049/27/1/213proton NMRfood authenticityadulterationolive oiledible oilPCA |
| spellingShingle | Colleen L. Ray James A. Gawenis C. Michael Greenlief A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra Molecules proton NMR food authenticity adulteration olive oil edible oil PCA |
| title | A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra |
| title_full | A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra |
| title_fullStr | A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra |
| title_full_unstemmed | A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra |
| title_short | A New Method for Olive Oil Screening Using Multivariate Analysis of Proton NMR Spectra |
| title_sort | new method for olive oil screening using multivariate analysis of proton nmr spectra |
| topic | proton NMR food authenticity adulteration olive oil edible oil PCA |
| url | https://www.mdpi.com/1420-3049/27/1/213 |
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