Research Article Open Access

Physico-Chemical Characteristics of Date Seed Oil Grown in Sudan

Rehab Salih Mahmoud Abdalla1, Alsheikh AlGilani Albasheer2, Abdel Rahim Mohamed ELHussein3 and ELrasheed Ahmed Gadkariem4
  • 1 Ministry of Science and Technology, Central Lab, Khartoum, Sudan
  • 2 Department of Chemistry, Faculty of Science, University of Alzaiem Alazhari, Khartoum, Sudan
  • 3 Ministry of Animal Resources and Fisheries Animal Resources Research Corporation, Director General Office Khartoum, Sudan
  • 4 ELRibat National University, Faculty of Pharmacy Khartoum, Sudan

Abstract

Problem statement: Studies were conducted on the physical-chemical properties of Sudanese date seed oil extracted from two date palm cultivars (Phoenix dactylifera L.) ALBarakawi and Alqundeila. The extracted oil from ALBarakawi seeds weighed 6.833% w/w oil, Alqundeila oil extracted weighed 5.064% w/w. Approach: The physical properties of ALBarakawi oil were: viscosity: 17cp, refractive Index: 1.444, density: 0.9116 g cm-3 color: Within the range 1. 6-11.1 (red-yellow). For Alqundeila the physical properties were: viscosity: 20cp, refractive index: 1.458, density: 0.9174 g cm-3 color: 1.8-12.1 (red yellow). Results: The chemical properties were: Acid value 2.55, saponfication value 0.255 mg g-1, iodine value 71.12 gm I2/100 gm fat, peroxide value: 4.8 mg. Peroxide/Kgoil for ALBarakawi. For Alqundeila they were: acid value 2.47, saponfication value 0.267 mg g-1 and iodine value 83.31gm I2/100 gm fat, peroxide value: 7.4 mg Peroxide/Kgoil. In this study, High Performance Liquid Chromatography (HPLC) was utilized for the identification and quantification of vitamin E in these samples. The content of vitamin E for ALBarakawi was 5.821 and 6.054 ppm for Alqundeila. For the fatty acid content in these oils, Gas Chromatography-Mass Spectrometry (GC-MS) was used. The constituents of fatty acids (calculated % relative to total fatty acid constituents) in ALBarakawi were: Saturated lauric acid 37.10%, palmitic acid: 9.24%, Stearic acid 1.71%, Unsaturated fatty acids: Linoleic acid (Omega-6) 4.33%, Oleic acid (Omega-9) 32.66%. For Alqundeila, the found fatty acids were: Saturated lauric acid o.11%, Palmitic acid: o.42%, Stearic acid 46.93%. Conclusion/Recommendations: The elements types and contents in these oils were: Iron 0.27 ppm, Magnesium 0.204 ppm, Sodium 60 ppm, Potassium 470 ppm, Calcium 25 ppm, Selenium 34.4 ppb for ALBarakawi. The contents of these elements in Alqundeila were: iron 0.27 ppm Magnesium 0.07 ppm, Potassium 2.3 ppm, Selenium 12.6 ppb. The methods involved in this study covered, Gas Chromatography-Mass Spectrometry (GC-MS), High Performance Liquid Chromatography (HPLC), Atomic Absorption Spectroscopy (AAS) and Refractometry. Physico-chemical properties of date seed oil reported in this study were found similar to most of the early published results in this field.

American Journal of Applied Sciences
Volume 9 No. 7, 2012, 993-999

DOI: https://doi.org/10.3844/ajassp.2012.993.999

Submitted On: 22 March 2012 Published On: 5 May 2012

How to Cite: Abdalla, R. S. M., Albasheer, A. A., ELHussein, A. R. M. & Gadkariem, E. A. (2012). Physico-Chemical Characteristics of Date Seed Oil Grown in Sudan. American Journal of Applied Sciences, 9(7), 993-999. https://doi.org/10.3844/ajassp.2012.993.999

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Keywords

  • Gas Chromatography-Mass Spectrometry (GC-MS)
  • High Performance Liquid Chromatography (HPLC)
  • non-natural source
  • date seeds oil