Research Article

Effect of drying methods on the physicochemical properties and Fatty Acid composition of Moringa Seeds Oil

Omosuli SV, Oloye DA and Ibrahim TA*

Published: 08/30/2017 | Volume 1 - Issue 1 | Pages: 027-032


Effect of drying methods (sun-drying and cabinet oven drying) on the physicochemical properties and fatty acid composition of oils extracted from moringa seeds was investigated. Oil from the seeds was extracted using solvent (hexane) after drying. Drying increased the yield from 30.30-33.11%. The oil samples were less dense than water with specific gravities of 0.9032, 0.9075 and 0.9030 respectively. A significant difference exists in the moisture contents (0.11-0.21%); smoke point (202-2250C), flash point (310-3170C) and fire point (360-3690C). Sun-drying and cabinet oven drying brought about a decrease in the acid value (1.80-1.08mgKOH/g), saponification value (174.87-105mgKOH/g), Iodine value (16.10-13.90wijs) and peroxide value (11.24-2.3-Meq/kg). The decrease is an indication of quality improvement of the oils. More unsaturated fatty acids were present in the samples between 76.61% and 81.66%. Oleic acid was predominant (44.92% raw, 45.71% sundried and 43.60% cabinet oven dried). Sun-drying and cabinet oven drying did not have much significant effect on the physical, chemical and fatty acid compositions of the oil. The results obtained from this study showed that the three oil samples are good as edible oil and for commercial purpose.

Read Full Article HTML DOI: 10.29328/journal.afns.1001005 Cite this Article


  1. Sharma P, Kumari P, Srivastava MM, Srivasta S. Removal of cadmium from aqueous system by shelled Moringa oleifera Lam. seed powder. Bioresour Technol. 2006; 97: 299-305. Ref.:
  2. Fahey JW. Moringa oleifera: A Review of the Medical Evidence for its Nutritional, Therapeutic and Prophylactic Properties. In Tree for Life J. 2005; 1: 5. Ref.:
  3. Ayotunde EO, Fagbenro OA, Adebanjyo OT. Toxicity of Aqueous Extract of Moringa oleifera Seed Powder to Nile Tilapia (creochronisniloticus) Fingerlings. Int Res J Agricul Sci. 2011; 142-150. Ref.:
  4. Mahmood KT, Mugai T, Ikram Ul Haq. Moringa oleifera: A Natural Gift. A Review. J phar Sci. Res. 2010; 2: 277-781. Ref.:
  5. Burkill JH. A Dictionary of Economic Product of the Malay Peninsula. 2006. Ref.:
  6. Nikkon F, Saud ZA, Rahman MH, Hadque E. In vitro Antimicrobial Activity of the Compound Isolated from Chloroform Extract of Moringa oleifera. Lam. Pak J Bio Sci. 2003; 6: 1888-1890. Ref.:
  7. Somli AT. Chemistry, Technology and Utilization van no streanreihold. New York. 557: 135-148.
  8. Corbett HT. Specific Gravities for Acetone, Alcohol, Turpentine, Oil and More Engineering. The Engg Toolbox. 2005. Ref.:
  9. Sutherland ER, Gregor JT, Fords MK. Miracle tree. Kos Health Publications.
  10. Official methods analysis 17th (Ed). Association of Official Analytical Chemists, Maryland CH. 2000; 2: 112-120. Ref.:
  11. Ibitoye AA. Laboratory Manual on Basic Methods in Plant Analysis, 1st (ED) concept IT & Educational Consults. 2005; 17-25.
  12. Anwer F, Zafar SN, Rashid U. Characterization of Moringa oleifera seed oil from drought and irrigated regions of Punjab, Pakistan. Grasas y Aceites. 2006; 57: 160-168. Ref.:
  13. Elert G. Density of Cooking, In Physics Factbook, Online. 2000. Ref.:
  14. Toolbox. Specific Gravities for Some Common Fluids and Liquids as Acetone, Alcohol, Turpentine, Oil and More. Engg Toolbox. 2005. Ref.:
  15. Weiss TJ. Food Arils and their Uses 4th Edition AVI Publishing Company. 1980; 135-137.
  16. Giwa N. Waste Oil Management and Environment, a report by Chairman Raw Material Research and Development Council in News Watch Magazine. 1992.
  17. Omosuli SV, Olalumade BB, Orungbemi OO, Ajigbo IO. Pysico-chemical Qualities of Oils Extracted from two Melon Seed Varieties. J. Science. 2: 157-159.
  18. Aluyor E. O and, Aluyor P and Ozigagu C. E. Effect of Refining on the Quality and Composition of groundnut oil. Africa j food sci. 2009; 3: 201-205. Ref.:
  19. Onwuka GI. Physicochemical, Nutritional and Functional Properties of the Epicarp, Flesh and Pitted Sample of Doum Fruit (Hyphaene Thebaica). 2005; 2: 92-93. Ref.:
  20. Codex Alimentarius Commission. Recommended Internal Standard Commission, Edible Fat and Oils. 1982. Ref.:
  21. Anwar F, Rashid U. Physiocochemical Characteristics of Moringa oleifera Seeds and Seed Oil from a Wild Provence of Pakistan. Journal of Botany. 2007; 39: 1443-1453. Ref.:
  22. FAO/WHO. Fats and Oil and Related Products, Food Standard Program. Codex Alimentarius Commission. Food and Agriculture Organization of United Nations. 2001; 33-35. Ref.:
  23. Bello MO, Farade OS, Adewusi SRA, Olawore NO. Studies of some lesser known Nigeria Fruits. African J Biotechnol. 2008; 7: 3979-3979. Ref.:  
  24. Lalas, S and Tsakins, J. Characterizations of Moringa oleifera Seed Oil variety “periyakulami” Journal of Food Composition and Analysis. 2002; 15: 65-77. Ref.:
  25. Falola AO, Adesola SO, Aremu TO. Extraction and Evaluation of Oil from Almond Seed (Terminarlia catappa). Proceeding of the Annual Conference of NigeriaInstitute of Food Science Technology held in Ogbomosho. 2008.
  26. Aremu MO, Olanisakin A, Bako DA, Madu P. C (2006) Compositional Studies and Physiocochemical Characteristics of Cashew Nut (Anarcadia Loccidentale) Flour. Pakistan J Nutri. 2006; 5: 328-333. Ref.:
  27. Sofowora A. Medicinal Plants and Traditional Medicines in Africa. Wiley and Sons, New York. 1993; 34-36. Ref.:
  28. Cheeke PR. Nutritional and Physiological Implication of Saponins: A Review. Can J Sci. 1971; 51: 621-632. Ref.:
  29. Anwar F, Bhanger J. Laboratory Manual Basic Methods in Plant. Analysis. 1st Edition. 17-25.
  30. Fuglier LJ. The Miracle Tree: Moringa Oleifera, Natural Nutrient for the Tropics. 1999; 68. Ref.: