Fatty acids and triacylglycerols in the seed oils of Saudi Arabian date (Phoenix dactylifera L.) palms |
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| Authors: | Veronika M Lieb Caroline Kleiber Ehab MR Metwali Naif MS Kadasa Omar A Almaghrabi Christof B Steingass Reinhold Carle |
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| Affiliation: | 1. Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology and Analysis, University of Hohenheim, Garbenstrasse 25, 70599 Stuttgart, Germany;2. Department of Biological Sciences, Faculty of Science, University of Jeddah, Jeddah, 21959 Saudi Arabia;3. Institute of Food Science and Biotechnology, Chair Plant Foodstuff Technology and Analysis, University of Hohenheim, Garbenstrasse 25, 70599 Stuttgart, Germany
Biological Science Department, Faculty of Science, King Abdulaziz University, P.O. Box 80257, Jeddah, 21589 Saudi Arabia |
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| Abstract: | Total lipids, fatty acids and triacylglycerols in seeds of the four Saudi Arabian date cultivars ‘Anbra’, ‘Megadwel’, ‘Sacai’ and ‘Sfwai’ were analysed. Total lipid contents ranged between 7.3 and 8.6%. Oleic, lauric and myristic acid represented the most abundant fatty acids in date seed oil. HPLC-DAD-ESI-MSn analysis enabled the identification of 40 triacylglycerols with equivalent carbon number (ECN) 36–54, of which 17 were detected for the first time. Triacylglycerols mainly comprised LaOL, LaLaL, LaML, MML/LaPL and LaOO. ‘Anbra’ oil was characterised by highest proportions of saturated fatty acids and triacylglycerols with ECN 36 and 48–54. Unsaturated fatty acids prevailed in the three remaining varieties. Elevated proportions of triacylglycerols with medium ECNs were found in ‘Megadwel’ and ‘Sfwai’ oils. Aside from highest total lipid contents, ‘Sacai’ seeds predominantly contained triacylglycerols with low ECNs. Multivariate statistical analyses elucidated varietal influences on the fatty acid and triacylglycerol composition of date seed oil. |
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| Keywords: | Date seed oil fatty acids multivariate statistics Phoenix dactylifera L triacylglycerols |
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