Article (Scientific journals)
Phytosterols composition of virgin olive oils from cultivars introduced in eastern Morocco in comparison to Picholine Marocaine
Mansouri, Farid; Ben Moumen, Abdessamad; Richard, Gaetan et al.
2015In Journal of Materials and Environmental Science, 6 (8), p. 2322-2329
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Keywords :
Virgin olive oil; Arbequina; Arbosana; Koroneiki; Picholine marocaine; Phytosterols; Pigments; Phenols
Abstract :
[en] The aim of this study is to characterize monovarietal virgin olive oils (VOOs) of three European cultivars (Arbequina, Arbosana and Koroneiki), grown under high-density plantation system in eastern Morocco, by comparison of their phytosterols profiles. First, physicochemical properties of these monovarietal VOOs as well as their contents of pigments and phenols were analyzed. Then, VOOs phytosterols profiles were determined by GC-FID, and show that b-sitosterol is the most abundant sterol which represent 75 to 79 % of total phytosterols in analyzed olive oils. On the basis of these results, a comparison between these monovarietal VOOs and olive oil of Picholine marocaine (autochthonous olive tree) has been carried out, and shows that majority of analytical parameters presented statistically significant differences (p < 0.05). The examined olive varieties produce excellent oils with a chemical composition within the regulatory limits and an appreciable amount of phytosterols. In addition, results showed that, total phytosterols content of olive oil from Picholine marocaine is significantly higher (2348.78 mg kg-1) than values observed for VOOs of European cultivars, which range from 1595 to 1971mg kg-1 but, Koroneiki’s VOO has the highest phenols content (493.66 mg kg-1) and the highest pigments content (3.94 and 2.17 mg kg-1 respectively for chlorophylls for carotenoids). Lastly, according to VOOs' content of minor components (phenols, pigments and phytosterols), the hierarchical cluster analysis shows a good discrimination between olive tree varieties.
Disciplines :
Chemistry
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Mansouri, Farid;  Université Mohammed Premier > Laboratoire de biologie des plantes et des microorganismes, département de biologie, Faculté des Sciences
Ben Moumen, Abdessamad;  Université Mohammed Premier > Laboratoire de biologie des plantes et des microorganismes, département de biologie, Faculté des Sciences
Richard, Gaetan ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie générale et organique
Fauconnier, Marie-Laure  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie générale et organique
Sindic, Marianne  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Laboratoire Qualité et sécurité des produits agro-aliment.
Serghini-Caid, Hana
Elamrani, A.
Language :
English
Title :
Phytosterols composition of virgin olive oils from cultivars introduced in eastern Morocco in comparison to Picholine Marocaine
Publication date :
2015
Journal title :
Journal of Materials and Environmental Science
ISSN :
2028-2508
Publisher :
Journal of Materials and Environmental Science, Oudja, Morocco
Volume :
6
Issue :
8
Pages :
2322-2329
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 January 2016

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