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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effect of the growing area conditions on differentiation between Chemlali and Chétoui olive oils
Food Chemistry, Volume 119, No. 1, Year 2010
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Description
This paper reports a discrimination study based on the antioxidant compounds, oxidative stability, aroma and sensory profiles of virgin olive oils from the main Tunisian cultivars, Chemlali and Chétoui, grown in two different locations, north and south Tunisia, with important differences in altitude, latitude and climatic conditions. There were significant differences between the oils from both cultivars when grown in the different environments. At higher altitude, the oils showed a greater amount of oleic acid, phenols and a higher stability, whilst in the open the oils had higher saturated and linoleic acid content. Aroma profiles were also influenced by the pedoclimatic conditions; hence, oils from the South had the highest level of (E)-2-hexenal and 1-hexanol, whereas varieties from the North were higher in (E)-3-hexenyl acetate and hexyl acetate. In general, and independently of the growing area conditions, oils from Chétoui olives had higher levels of antioxidants, greater oxidative stability, higher antiradical activities and more marked intensity of bitterness. These results can be used to discriminate and to characterise the Chemlali and Chétoui olive oils from each region. © 2009.
Authors & Co-Authors
Issaoui, Manel
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Flamini, Guido
Italy, Pisa
Università Di Pisa
Brahmi, Faten
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Dabbou, Samia
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Hassine, Kaouther Ben
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Taamalli, Amani
Tunisia, Hamam Lif
Centre de Biotechnologie de Borj Cédria
Chehab, Hechmi
Tunisia, Monastir
Olive Tree Institute of Sousse
Ellouz, Meriem
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Zarrouk, Mokhtar
Tunisia, Hamam Lif
Centre de Biotechnologie de Borj Cédria
Hammami, M. B.
Tunisia, Monastir
Ur Human Nutrition and Metabolic Disorders Faculty of Medicine
Statistics
Citations: 141
Authors: 10
Affiliations: 4
Identifiers
Doi:
10.1016/j.foodchem.2009.06.012
ISSN:
03088146
Research Areas
Environmental
Study Locations
Tunisia