Differentiation of Organically and Conventionally Grown Tomatoes by Chemometric Analysis of Combined Data from Proton Nuclear Magnetic Resonance and Mid-infrared Spectroscopy and Stable Isotope Analysis
Type de document
journalArticle
Langue source
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Titre
Differentiation of Organically and Conventionally Grown Tomatoes by Chemometric Analysis of Combined Data from Proton Nuclear Magnetic Resonance and Mid-infrared Spectroscopy and Stable Isotope Analysis
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Titre anglais
Auteur(s)
- HOHMANN Monika
- MONAKHOVA Yulia
- ERICH Sarah
- CHRISTOPH Norbert
- WACHTER Helmut
- HOLZGRABE Ulrike
Editeur(s)
Autre(s)
Id
IAU6LE7W
Version
3381
Date ajout
20 avril 2021 15:48
Date modification
20 avril 2021 15:48
Résumé
Because the basic suitability of proton nuclear magnetic resonance spectroscopy (1H NMR) to differentiate organic versus conventional tomatoes was recently proven, the approach to optimize 1H NMR classification models (comprising overall 205 authentic tomato samples) by including additional data of isotope ratio mass spectrometry (IRMS, δ13C, δ15N, and δ18O) and mid-infrared (MIR) spectroscopy was assessed. Both individual and combined analytical methods (1H NMR + MIR, 1H NMR + IRMS, MIR + IRMS, and 1H NMR + MIR + IRMS) were examined using principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA), linear discriminant analysis (LDA), and common components and specific weight analysis (ComDim). With regard to classification abilities, fused data of 1H NMR + MIR + IRMS yielded better validation results (ranging between 95.0 and 100.0%) than individual methods (1H NMR, 91.3–100%; MIR, 75.6–91.7%), suggesting that the combined examination of analytical profiles enhances authentication of organically produced tomatoes.
Note
None
CRAW tags
- AB - Modalité bio
- FREDO authentification
- FREDO qualité des produits
- FREDO technologie et innovation
- GEO Global
- comparaison
- légume
- tomate
WEB tags
Titre de la publication
Journal of Agricultural and Food Chemistry
Volume
63
Pages
9666-9675
Date caractères
2015-11-04
Date publication
4 novembre 2015
Doi
10.1021/acs.jafc.5b03853
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Issn
0021-8561
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