Journal
FOOD RESEARCH INTERNATIONAL
Volume 89, Issue -, Pages 1123-1133Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foodres.2016.04.024
Keywords
Olive oils; NMR; Algeria; Bejaia; Statistical analysis
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Olive fruits from 19 varieties and different areas of Bejaia province (Algeria) were used to produce monovarietal olive oils in laboratory. The olive oils were analyzed using both traditional chemical analyses and nuclear magnetic resonance (NMR) methodology. The investigation involved pigment content determination, tocopherol analysis, fatty acid composition, and chromatographic determination of phenolic compounds. Chlorophyll, carotenoids, tocopherols and the content of oleic add turned out to be variety dependent. The extra-virgin olive oils (EVOOs) were analyzed as a whole and as phenolic extract by NMR. The study gave general indication on olive oil quality and information about geographical origin of the samples. Overall, the results obtained in the present work reveal that Algerian monovarietal olive oils produced in Bejaia province have the potential to produce blends that may compete with other Mediterranean products. (C) 2016 Elsevier Ltd. All rights reserved.
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