- Titre : Fatty acid composition in olive (Olea europaea. L) oil of progenies obtained from Tunisian crossbreeding program
- DOI : 10.71751/JAAOGv1i1y2022-11-23
- Auteur : Mohamed AYADI1; Fathi BEN AMAR
- Abstract : Five preselected olive progenies from a Tunisian crossing program between 'Chemlali Sfax' variety and several Mediterranean varieties were evaluated for their fatty acid composition in comparison with the original variety. These progenies were planted in a trial orchard with 4mx6m space and irrigated conditions in the experimental station ‘Ettaous’ in Sfax (Tunisia). The analysis of variance revealed significant differences among progenies for C16:0, C16:1, C18:1, C18:2 and C18:3. The Hierarchical Cluster Analysis classified the progenies into three main groups. Two groups included four olive progenies characterized mainly by high oleic and low palmitic acid contents. There were significant negative correlations between oleic acid and palmitic, palmitoleic, linoleic and linolenic acids. The principal component analysis showed that two components accounted for 75% of the total variation observed and revealed the importance of the main fatty acids 16:0, 18:1 and 18:2 in the characterization of olive progenies. The fatty acid compositions of the oils from all the progenies comply with international standards and show more beneficial characteristics than the oil obtained from ‘Chemlali Sfax’ (higher oleic acid content and lower palmitic acid content) except for hybrid 2 oil which showed an unchanged fatty acid composition. From this study, four promising progenies could be candidates for release and further investigation on minor chemical components must be undertaken.
- Pagination : 11-23
