期刊
GRASAS Y ACEITES
卷 65, 期 2, 页码 -出版社
CONSEJO SUPERIOR INVESTIGACIONES CIENTIFICAS-CSIC
DOI: 10.3989/gya.122413
关键词
Geographical origin; H-1 DOSY NMR; H-1 NMR quantitative analysis; Olive oil; Sub-fraction determination
资金
- German Science Foundation (DFG) [STE 1127/15-1]
The main goal of this study is to rapidly screen olive oil contents by acquiring one dimensional (1D) H-1 NMR spectra of 38 samples from Turkey, The Middle East, and Libya. The quantitative analysis of the H-1 NMR helped in distinguishing the geographical origin of the olive oil samples. The intensity of H-1 NMR variables was submitted to the statistical method, analysis of variance (ANOVA). As a result of combining the NMR data and ANOVA, olive oils were discriminated based on regional origin rather than province. This less time consuming discriminative screening by H-1 NMR does not require any further analysis of the olive oil, including oxidative stability measurements or gas chromatography. The possibility of determining authenticity, even in an olive growing area of a small village was also shown. The two-dimensional (2D) non-invasive H-1 DOSY NMR experiment, known as NMR chromatography, was used to determine the olive oil sub-fraction.
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