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Compositional characteristics and aromatic profile of date palm seeds from seven varieties grown in Tunisia

Authors

  • Emna B. Saafi-Ben Salah,

    Corresponding author
    1.  Research Unit “Genome, Immune Diagnosis and Recovery”, Higher Institute of Biotechnology, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
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  • Guido Flamini,

    1.  Dipartimento di Scienze Farmaceutiche, Sede di Chimica Bioorganica e Biofarmacia, via Bonanno 33, 56126 Pisa, Italy
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  • Amira El Arem,

    1.  Research Unit “Genome, Immune Diagnosis and Recovery”, Higher Institute of Biotechnology, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
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  • Manel Issaoui,

    1.  Laboratory of Biochemistry, UR03/ES08 ‘Human Nutrition & Metabolic Disorders’, USCR Mass Spectrometry, Faculty of Medicine, Avenue Ibn Sina, 5000 Monastir, Tunisia
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  • Samia Dabbou,

    1.  Research Unit “Genome, Immune Diagnosis and Recovery”, Higher Institute of Biotechnology, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
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  • Leila BenYahia,

    1.  Aridlands and Oases Cropping Laboratory, Institute of the Arid Areas, 4119 Medenine, Tunisia.
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  • Ali Ferchichi,

    1.  Aridlands and Oases Cropping Laboratory, Institute of the Arid Areas, 4119 Medenine, Tunisia.
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  • Mohamed Hammami,

    1.  Laboratory of Biochemistry, UR03/ES08 ‘Human Nutrition & Metabolic Disorders’, USCR Mass Spectrometry, Faculty of Medicine, Avenue Ibn Sina, 5000 Monastir, Tunisia
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  • Lotfi Achour

    Corresponding author
    1.  Research Unit “Genome, Immune Diagnosis and Recovery”, Higher Institute of Biotechnology, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia
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Fax: +216 73465 404; e-mails: saafi_behija@yahoo.fr; lotfiachour@yahoo.fr

Summary

This paper reports a discrimination study based on the physico-chemical characteristics, fatty acids and profile of volatile compounds of the seeds from seven date palm varieties (Phoenix dactylifera L.) grown in Tunisia. Date seeds contained 10.49–14.76% moisture; 6.28–11.2% fat (on a dry weight basis); 2.67–12.85% protein; 0.91–6.06% reducing sugar; 0.61–2.98% sucrose and 0.97–1.17% ash. Gas liquid chromatography revealed that the oil fraction of the date palm seeds contained eighteen fatty acids, with oleic acid (30.77–42.50%) and lauric acid (18.51–27.48%) as the main unsaturated and saturated ones. Volatile profile showed differences among varieties. In total, forty-five compounds were identified, mainly alcohols, aldehydes and unsaturated hydrocarbons ones. This study provides evidence that the seeds of date may be a potential source of valuable nutrients with interesting functionality.

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