19 - Extraction and Utilization of Sudanese Acacia Senegale Seeds (Gum Arabic) Oil for Biodiesel Production in Sudan

Hamed M. A., Hassan E. A., Atabani A. I.

in: Gum Arabic Structure, Properties, Application and Economics, Mariod A.A, Editor, Academic Press , Amsterdam, pp.229-236, 2018

  • Publication Type: Book Chapter / Chapter Research Book
  • Publication Date: 2018
  • Publisher: Academic Press
  • City: Amsterdam
  • Page Numbers: pp.229-236
  • Editors: Mariod A.A, Editor
  • Erciyes University Affiliated: Yes


his study aims to figure out secondary uses of Acacia senegal var. senegal(family Leguminosae). The seeds were collected from El Obayed in Kordofan state, Sudan, during the season 2015–16. Solvent extraction technique was utilized to extract the oil from the A. senegal seeds. The oil content of these seeds was found to reach 20% w/w. The extracted oil was subjected to physicochemical evaluation; the results showed that its free fatty acid content was 3.8 g/L, its saponification value was 848.4 mL/g, iodine value was 89.144 mL/g, peroxide value was 6.0 mL/g, its moisture content was 0.8%, density was 0.915 g/cm3, refractive index was 1.4628, and color was 1.5/29.04 (red/yellow). The extracted oil was converted into biodiesel through a transesterification reaction, and its physicochemical properties were investigated. The produced biodiesel density at 15°C and 20°C, cloud point, and cold filter plugging point (CFPP) were found to be 0.8834 and 0.8808 g/cm3; 18°C, 14°C, and 11°C; and 198oC, respectively. Also, its IR and gas chromatography–mass spectrometry (GC–MS) were recorded. All results showed that it is of acceptable qualities as a biodiesel.