FATTY ACID COMPOSITION AND PHYSICO-CHEMICAL PROPERTIES OF DATE SEEDS OILS OF THREE FRUITS (Phoenix dctylifera L) PRODUCED IN OUARGLA REGION

 

Mustapha BOUKOUADA1, Zineb GHIABA1, Mokhtar SAIDI1, Mohamed YOUSFI2, Mohamed lakhdar BELFAR1

 

1 Laboratoire de Valorisation et Promotion des Ressources Sahariennes, Université de Ouargla, Algeria

2 Laboratoire des Sciences Fondamentales, Université Amar Telidji de Laghouat, Algeria. Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

 

Algeria  considered as one of the major date producing countries. The production reaches up 468,000 tons annually, most of it consumed locally. The seeds or date stones which represent a relatively high yield are considered in most cases as waste and hence the present work was planned with the aim of making use to them and to study the possible economic and medicinal potentialities of this crop in Algeria. Three different date palm seeds (Phoenix dactylifera L.) cultivars, Deglet-Nour, Ghars and Tamdjouhert , originating from south eastern  of Algeria (Ouargla region  ), were analyzed, The  oil contents  of  these  seeds  range  5.05  –  6.08%.     all  the  seed  oil  studied were  liquid at  room temperature and  the characteristics  and  constituents  of  the  seed  oils  were  determined,  including physico-chemical properties, specific gravity, refractive index, saponification value, acid value and Iodine value. The analysis by gas chromatography of fatty acid methyl esters, shows that oils contains mainly fatty acids oleic, linoleic, palmitic and stearic,less  fatty acid in the tale us fatty acid  capric, lauric and myristic have  also been detected. The amount of sterols has been determined by a simple spectrophotometric method.

 

Keywords: Date Seed, Phoenix dactylifera L, fatty acid composition, physico-chemical properties, Sterols.

 

 

 Télécharger l'article