期刊
FOOD CHEMISTRY
卷 215, 期 -, 页码 1-6出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.07.135
关键词
Olive oil; Raman spectroscopy; Isotope ratio mass spectrometry; Carotenoid content; Chemometrics; Geographical origin
资金
- UNAPROL
We have determined the isotopic composition and the carotenoid contents of 38 extra-virgin olive oils (EVOOs) from seven regions along the Italian coasts, by means of isotope ratio mass spectrometry (IRMS) and resonant Raman spectroscopy (RRS), respectively. The application of linear discriminant analysis to our overall results demonstrated the combination of isotope and carotenoid data is a promising method to discriminate EVOOs from production sites that are impacted by similar geographical and climatic parameters. In particular, this dual approach allowed correct classification of 82% EVOO samples, while separate IRMS and RRS investigations were able to discriminate only samples from Sicily and Latium, respectively. (C) 2016 Elsevier Ltd. All rights reserved.
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