Variation in oil content and fatty acid composition in preselected argan trees with morphological characters and geographical localization
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The aim of this study is to examine the variability of yield and fatty acid composition of argan seed oil (Argania spinosa L.) in four provenances, and to find the relationship between fatty acid composition and environmental conditions. Twenty genotypes were preselected and evaluated for fatty acids composition during 3 years (2008–2010). The oil was extracted by a Soxhlet and the fatty acids composition was determined using gas chromatography. The results revealed a variation in seed oil content (51.83–57.50 %). Total saturated fatty acids content (C14:0; C16:0; C18:0; C20:0) ranged from 19.53 to 20.29 %, with lower content in Had Dra and Biougra than other provenances. However, the concentration of total unsaturated fatty acids ranged from 79.56 to 80.29 %, with a higher percentage of monounsaturated fatty acid (C16:1; C18:1; C20:1) (47.60 %) in Aoulouz and a higher percentage of polyunsaturated fatty acid (C18:2; C18:3) (35.53 %) in Biougra provenance. No correlation between oil content and fatty acid compositions with the morphological data (mother tree, fruit and seed forms) was found. The geographical localization and fatty acid content were not correlated with oil content. The study proved a significant contribution of environmental conditions to the variation in fatty acid composition. We conclude that there is a highly significant variation both in oil content and fatty acid composition in the argan provenances that can be used for its improvement.
KeywordsArgania spinosa Oil content Fatty acid Preselection
Conflict of interest
The authors declare they have no conflict of interest.
- 1.Emberger L (1925) Le domaine naturel de l’arganier. Bulletin de la Société de Botanique de France 73:770–774Google Scholar
- 2.M’Hirit O, Benzyane M, Benchekroun F, El Yousfi SM, Bendaanoun M (1998) L’Arganier. Une espèce fruitière à usages multiples. Pierre Mardaga, Sprimont, Belgique. Beaux Arts Littérature, p 150Google Scholar
- 3.Bani Aameur F, Ferradous A (2001) Fruits and stone variability in three argan (Argania spinosa (L.) Skeels) populations. For Genet 8(1):39–45Google Scholar
- 6.Charrouf Z, El Hamchi H, Mallia S, Licitra G, Guillaume D (2006) Influence of roasting and seed collection on argan oil odorant composition. Nat Prod Commun 1:399–404Google Scholar
- 15.Ait Aabd N, El Ayadi F, Msanda F, El Mousadik A (2011) Evaluation of agromorphological variability of argan tree under different environmental conditions in Morocco: implication for selection. Int J Biodivers Conserv 3(3):73–82 (ISSN 2141-243X)Google Scholar
- 16.Ait Aabd N, Msanda F, El Mousadik A (2012) Univariate and multivariate analysis of agronomical traits of preselected argan trees. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 40(2):308–316 (ISSN 0255-965X)Google Scholar
- 19.AOAC (1990) Official methods of analysis, 15th edn. Association of Official Analytical Chemists, Inc., Virginia, pp 770–771Google Scholar
- 20.Huyghebaert A, Hendrick H (1974) Some aspects of chemical, physical and technological argan oil. Oilseed 10:29–31Google Scholar
- 23.Charrouf Z, Guillaume D (2002) Chemistry of the secondary metabolites of Argania spinosa (L.) Skeels. Curr Topics Phytochem 5:99–102Google Scholar
- 25.Gwali S, Nakabonge G, Lamoris Okullo JB, Eilu G, Forestier-Chiron N, Piombo G, Davrieux F (2012) Fat content and fatty acid profiles of shea tree (Vitellaria paradoxa subspecies nilotica) ethno-varieties in Uganda. Forests Trees Livelihoods 21(4):267–278. doi: 10.1080/14728028.2012.755810 CrossRefGoogle Scholar