Journal of Environmental Biology

Physico-chemical characteristics of oil produced from seeds of some date palm cultivars (Phoenix dactylifera L.)

S.S. Soliman^1,2*, R.S. Al-Obeed¹ and T.A. Ahmed³

¹Plant Production Dept., College of Food and Agriculture Sciences, King Saud University, Box 2460, Riyadh 11451, Saudi Arabia

²Department of Horticultural Crops Technology, National Research Centre, Cairo, Dokki, 12622, Cairo, Egypt

³Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, 2713, Qatar

*Corresponding Authors Email : said_soliman@hotmail.com

Publication Data

Paper received:

08 November 2013

Revised received:

28 May 2014

Accepted:

30 May 2014

Abstract

The oil content of saturated and unsaturated fatty acids with some physico-chemical properties and nutrients were investigated in oil produced from seeds of six important date palm cultivars and one seed strain present in Saudi Arabia. The results indicated that the oil extracted from six seed cultivars of date palm ranged from 6.73-10.89% w/w oil. The refractive index of date seeds oil was found to be between 1.4574 to 1.4615. The iodine values, acid values and saponification values were in the range of 74.2-86.6 g iodine 100g^-1; 2.50-2.58 mg KOH g^-1 and 0.206-0.217 mg KOH g^-1, respectively. Lauric acid, Myristic acid, Palmitic acid C₁₅, Palmitic acid C₁₆,? Stearic acid, Arachidic acid and Behenic acid of date seeds oil contents were found between? 8.67- 49.27; 7.01-15.43; 0-0.57; 4.82-18.09; 1.02-7.86; 0-0.08; and? 0-0.15 % w/w, in that order. Omega-6 and Omega-9 of date seeds oil were found between 7.31-17.87 and 52.12-58.78%, respectively. Khalas ,Barhy cvs. and seed strain gave highest K and Ca, Na and Fe, Mg as? compared with other studied cultivars. ??   

 Key words

Date palm, Fatty acid, Nutrients, Physico-chemical properties, Seed oil 

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