Chemical composition of seed and seed oil from Iranian commercial date cultivars

Document Type: Original research


1 Agricultural Engineering Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj,Iran

2 Seed and Plant Improvement Research Department, Kerman Agricultural and Natural Resources Research and Education Centre, Agricultural Research, Education and Extension Organization (AREEO), Kerman, Iran


In the present study, the seeds of two date palm (phoenix dactylifera L.) cultivars, Mazafati and Kalutah, were analyzed for their physical properties and chemical composition. Studies were also conducted on properties of oil extracted from the seeds and its fatty acid composition. The seeds constituted about 6-10% of the fruit weight. They, on the average, contained 4.84% protein, 12.22% fat, 27.58% fiber, 80.76% carbohydrates, 1.18% ash and 1.72% moisture. Mineral analysis showed higher concentration of Fe followed by Ca, Cu, Na, Zn and Mn. The seeds were also a rich source of phenolics, which ranged from 1840.93 to 1952.93 mg GAE/100 g. The average chemical characteristics of the date seed oils were: iodine value 55.153, saponification value 228.067 and peroxide value 15.537. The main fatty acids of the seed oils were oleic (48.10-50.50%), lauric (14.00-15.80%), palmitic (10.80-11.70%), myristic (10.60-10.90%), linoleic (7.70-8.20%) and stearic acids (3.00-3.40%).


Al-Farsi, M. A., & Lee, C. Y. (2011). Usage of date (Phoenix dactylifera L.) seeds in human health and animal feed. In Nuts and seeds in health and disease prevention (pp. 447-452). Academic Press.

Al-Farsi, M., Alasalvar, C., Al-Abid, M., Al-Shoaily, K., Al-Amry, M., & Al-Rawahy, F. (2007). Compositional and functional characteristics of dates, syrups, and their by-products. Food Chemistry, 104(3), 943-947.

Ali-Mohamed, A. Y., & Khamis, A. S. (2004). Mineral ion content of the seeds of six cultivars of Bahraini date palm (Phoenix dactylifera). Journal of agricultural and food chemistry, 52(21), 6522-6525.

AL-Kahtani, H. A., Abdul Rahman, R., Mansor, T. S. T., Abdul Afiq, M. J., & Che Man, Y. B. (2013). Date seed and date seed oil.

Al‐Shahib, W., & Marshall, R. J. (2003). Fatty acid content of the seeds from 14 varieties of date palm Phoenix dactylifera L. International journal of food science & technology, 38(6), 709-712.

Al‐Shahib, W., & Marshall, R. J. (2003). Fatty acid content of the seeds from 14 varieties of date palm Phoenix dactylifera L. International journal of food science & technology, 38(6), 709-712.

Amany, M. M. B., Shaker, M. A., & Abeer, A. K. (2012). Antioxidant activities of date pits in a model meat system. International Food Research Journal, 19(1).

AOCS, O. (1993). Methods and recommended practices of the American oil chemists’ society method Cd 8-53. Peroxide value acetic acid-chloroform method.

Association of Official Analytical Chemists. (1990). Official Methods of Analysis: Changes in Official Methods of Analysis Made at the Annual Meeting. Supplement (Vol. 15). Association of Official Analytical Chemists.

Attalla, A. M., & Harraz, F. M. (1996). Chemical composition oof the pits of selected date palm cultivars grown in the Qassim region, Saudi Arabia.

Besbes, S., Blecker, C., Deroanne, C., Drira, N. E., & Attia, H. (2004). Date seeds: chemical composition and characteristic profiles of the lipid fraction. Food chemistry, 84(4), 577-584.

Devshony, S., Eteshola, E., & Shani, A. (1992). Characteristics and some potential applications of date palm (Phoenix dactylifera L.) seeds and seed oil. Journal of the American Oil Chemists'' Society, 69(6), 595-597.

El-Shurafa, M. Y., Ahmed, H. S., & Abou-Naji, S. E. (1982). Organic and inorganic constituents of date palm pit (seed) [in Libya]. Date Palm Journal (FAO/NENADATES).

Gurevich, V., Lavi, U., & Cohen, Y. (2005). Genetic variation in date palms propagated from offshoots and tissue culture. Journal of the American Society for Horticultural Science, 130(1), 46-53.

Habib, H. M., & Ibrahim, W. H. (2009). Nutritional quality evaluation of eighteen date pit varieties. International Journal of Food Sciences and Nutrition, 60(sup1), 99-111.

Hamada, J. S., Hashim, I. B., & Sharif, F. A. (2002). Preliminary analysis and potential uses of date pits in foods. Food chemistry, 76(2), 135-137.

Krebs, N. F. (2000). Dietary zinc and iron sources, physical growth and cognitive development of breastfed infants. The Journal of nutrition, 130(2), 358S-360S.

Nehdi, I., Omri, S., Khalil, M. I., & Al-Resayes, S. I. (2010). Characteristics and chemical composition of date palm (Phoenix canariensis) seeds and seed oil. Industrial Crops and Products, 32(3), 360-365.

Platat, C., Habib, H. M., Ibrahim, W. H., Hashim, I. B., & Eldin, A. K. (2013). Date seed powder-containing bread exhibits higher levels of flavonoids and antioxidant capacity compared to regular and whole wheat bread.

Ploysangam, A., Falciglia, G. A., & Brehm, B. J. (1997). Effect of marginal zinc deficiency on human growth and development. Journal of tropical pediatrics, 43(4), 192-198.

Rahman, M. S., Kasapis, S., Al-Kharusi, N. S. Z., Al-Marhubi, I. M., & Khan, A. J. (2007). Composition characterisation and thermal transition of date pits powders. Journal of Food Engineering, 80(1), 1-10.

Saafi, E. B., Trigui, M., Thabet, R., Hammami, M., & Achour, L. (2008). Common date palm in Tunisia: chemical composition of pulp and pits. International journal of food science & technology, 43(11), 2033-2037.

Salih, R., Abdalla, M., AlGilani, A., Albasheer, A., & Rahim, M. E. L. (2012). Hussein and EL Rasheed, A. Gadkariem, physico-chemical characteristics of date seed oil grown in Sudan. American Journal of Applied Science, 9.

Sawaya, W. N., Khalil, J. K., & Safi, W. J. (1984). Chemical composition and nutritional quality of date seeds. Journal of Food Science, 49(2), 617-619.

Sotolu, A. O., Kigbu, A. A., & Oshinowo, J. A. (2011). Nutritional evaluation of date palm (Phoenix dactylifera) seeds and fruit as source of feeds in aquaculture. Electronic Journal of Environmental, Agricultural and Food Chemistry, 10(5), 2279-2286.

Tadhani, M. B., Patel, V. H., & Subhash, R. (2007). In vitro antioxidant activities of Stevia rebaudiana leaves and callus. Journal of Food Composition and Analysis, 20(3-4), 323-329.

Velioglu, Y. S., Mazza, G., Gao, L., & Oomah, B. D. (1998). Antioxidant activity and total phenolics in selected fruits, vegetables, and grain products. Journal of agricultural and food chemistry, 46(10), 4113-4117.