Document Type : Original Article


1 Ethiopian Institute of Agricultural Research, Wondo Genet Agricultural Research Center. P.O.Box 198, Shashemene, Ethiopia

2 Ethiopian Petroleum Enterprise

3 Addis Ababa University, School of Pharmacy

4 Ethiopian Institute of Agricultural Research, Agricultural and Nutritional Research Laboratories, Ethiopia.

5 Ethiopian Institute of Agricultural Research, Agricultural and Nutritional Research Laboratories, Ethiopia

6 Ministry of Water, Irrigation and Energy



For determining the fatty acid characteristics and biodiesel quality of Ethiopian Jatropha provenances, the study was conducted in five regions namely Southern Nation Nationalities Peoples Regional State (SNNPRS), Amhara region, Tigria region, Oromia region and Benishangul Gumuz Regions, where physic nut is found abundantly. For each region, representative sampling sites were selected following thorough discussion with head of Mines and Energy at zonal level. During representative sample site selection, one knowledgeable and responsible expert was assigned from the zonal mines and energy office for making the site selection more perfect and easier and thereby to collect representative data from each region. Following this arrestment, a total of 23 Zones, 36 Weredas and 40 sampling sites were considered from five regions of the country for the study. It was observed that the identified constituents of the Jatropha oils are linoleic acid, stearic acid, palmetic acid and oleic acid. From the identified fatty acids, oleic acid was the major constituent followed by stearic acid. The constituents of the fatty acids ranged from 42.8-51.4% for oleic acid, 10.9-19.3% for stearic acid, 10.62-15.91% for palmetic acid and 21.73-25.43% for linoleic acid. The biodiesel quality characteristics of Ethiopian Jatropha seeds were found within the limits of American standard (D874) and European standard (EN 14214 standard). Hence, it can be concluded that the seeds of the existing Ethiopian Jatropha population can be used for the production and processing of environmentally friendly biodiesel.


Adebowale, K.O, Adedire, C.O., 2006. Chemical composition and insecticidal properties of the underutilized Jatropha curcas seed oil. Afr. J. Biotechnol., 5(10), 901-906.
Akbar, E., Yaakob, Z., Kamarudin, S.K., Ismail, M., Salimon, J., 2009. Characteristic and composition of Jatropha curcas oil seed from Malaysia and its potential as biodiesel feedstock.
Akintayo, E.T., 2004. Characteristics and composition of Parkia biglobbossa and Jatropha curcas oils and cakes. Bioresour. Technol., 92, 307-310.
Augustus, G.D., Beans, P.S.M., Seiler, G.J., 2002. Evaluation and bioinduction of energy components of Jatropha curcas. Biomass. Bioenerg., 23, 161-164.
Awulachew, S.B., Yilma, A.D., Loulseged, M., Loiskandl, W., Ayana, M., Alamirew, T., 2007. Water resources and irrigation development in Ethiopia. Colombo, Sri Lanka: Int. Water. Manag. Instit., Working Paper 123.
Azam, M.M., Waris, A., Nahar, N.M., 2005. Prospects and potential of fatty acid methyl esters of some nontraditional seed oils for use as biodiesel in India. Biomass. Bioenerg., 29, 293-302.
Banapurmath, N.R., Tewari, P.G., Hosmath, R.S., 2008. Performance and emission characteristics of a DI compression ignition engine operated on Honge, Jatropha and sesame oil methyl esters. Renew. Energ., 33, 1982–1988.
Barbara, J.S., 2007. The false promise of biofuels. Special report from the international forum on globalization and the institute for policy studies. 30.
Beer, M.E., King, A.R., Livio, M., Pringle, J.E., 2004. How special is the Solar system? Monthly Notices of the Royal Astronomical Society, 354(3), 763-768.
Benge, M., 2006. Assessment of the Potential of Jatropha Curcas, (Biodiesel Tree) For Energy Production and Other Uses in Developing Countries.
(Posted on ECHO’s website with permission of the author on July 2006). (Accessed on 16-December-2011).
Berchmans, H.J., Hirata, S., 2008. Biodiesel production from crude Jatropha curcas L. seed oil with a high content of free fatty acids. Bioresour. Technol., 99, 1716-1721.
Biswas, S., Kaushik, N., Srikanth, G., 2006. Biodiesel: technology and business opportunities-an insight. Papers presented at the biodiesel conference towards energy independence-focus on Jatropha, Rashtrapati Nilayam, Bolaram, Hyderabad, India.
Cardone, M., Mazzoncini, M., Menini, S., Rocco, V., Senatore, A., Seggiani, M., Vitolo, S., 2003. Brassica carinata as an alternative oil crop for the production of biodiesel in Italy: Agronomic evaluation, fuel production by transesterification and characterization. Biomass. Bioenerg., 25, 623 – 636.
Daniel, B., Solomon, A., Wossen, K., 2008. Laboratory manual for plant products analysis. Technical Manual, 1(23), 3-10.
Demirbas, A., 2003. Biodiesel fuels from vegetable oils via catalytic and non-catalytic supercritical alcohol transesterifications and other methods: a survey. Energ. Conv. Manag., 44, 2093–2109.
EPA, 1998. Environmental protection authority. National Action Program to Combat Desertification. Federal Democratic Republic of Ethiopia, Addis Ababa.
FAO, 2010. Jatropha: A small holder bioenergy crop.
Foidl, N., Foidl, G., Sanchez, M., Mittelbach, M., Hackel, S., 1996. Jatropha curcas L. As a source for the production
of biofuel in nicaragua. Bioresour. Technol., 58, 77-82.
Freedman, B., Pryde, E.H., Mounts, T.L., 1984. Variables affecting the yields of fatty esters from transesterified vegetable oils. J. Am. Oil. Chem. Soci., 61, 1638–1643.
Getinet, A., Dawit, A., Daniel, B., Mekuria, T., 2009. Bioenergy Crops: Challenges, Risks and Opportunities. Crop Science Society of Ethiopia (CSSE). Sebil Vol.13. Proceedings of the Thirteenth Biennial Conference, 31st Dec.
2008-2nd Jan. 2009 Addis Ababa Ethiopia.
Ginwal, H.S., Rawat, P.S., Srivastava, R.L., 2004. Seed source variation in growth performance and oil yield of Jatropha curcas Linn. in central India. Division of genetics and tree propagation. Forest Research Institute.
Girma, H., 2000. Energy Law Ethiopia, International Encyclopedia of Laws Kluwer Law International, Leuven, Belgium. Cepmlp Electronic Journal. 9, 13
Guenther, E., 1972. The Essential Oils: History-Origin in Plants Production-Analysis(Vol I), Robert E. Kriger Publishing Co., Malabar, Florida, 427.
Gunstone, F.D., 2004. Rapeseed And Canola Oil: Production, processing, properties and uses. London: Blackwell Publishing Ltd.
Heller, J., 1996. Physic nut. Jatropha curcas L. Promoting the conservation and use of underutilized and neglected crops. 1. Institute of Plant Genetics and Crop Plant Research, Gatersleben/ International Plant Genetic Resources Institute, Rome.
IBC, 2007. Institute of Biodiversity Conservation. Ethiopia: Second Country Report on the State of PGRFA (Plant Genetic Resources for Food and Agriculture) to FAO. Addis Ababa, Ethiopia.
Kaushik, N., Kumar, K., Kumar, S., Kaushik, N., Roy, S., 2007. Genetic variability and divergence studies in seed traits and oil content of Jatropha (Jatropha curcas L.) accessions. Biomass. Bioenerg., 31(7), 497-502.
Kinast, J.A., 2003. Production of biodiesels from multiple feedstockes and properties of biodiesels and Biodiesel/Diesel blends. Final Reprort 1 in a series of 6. National Renewable Energy Laboratory, Golden, Colorado, 80401-3393.
Knothe, G., Steidley, K.R., 2005. Kinematic viscosity of biodiesel fuel components and related compounds.
Influence of compound structure and comparison to petrodiesel fuel components. Fuel, 84, 1059-1065.
Kpoviessi, D.S.S., Accrombessi, G.C., Kossouoh, C., Soumanou, M.M., Moudachirou, M., 2004. Propriétés physicochimiques et composition del’huile non conventionnelle de pourghère (Jatrophacurcas) de différentes régions
du Bénin. C.R. Chimie, 7, 1007-1012.
Makkar, H.P.S., Becker, K., 1997. Potential of Jatropha curcas seed meal as a protein supplement to livestock feed, constraints to its utilization and possible strategies to overcome constraints, in: Biofuels and industrial products from Jatropha curcas - Proceedings from the Symposium "Jatropha 97", Managua, Nicaragua, Feb. 23-27.
Makkar, P.S., Becker, P.S., 2009. Jatropha curcas, a promising crop for the generation of biodiesel and value-added co products. Eur. J. Lipid. Sci. Technol., 111, 773–787.
Mesfin, K.T., 2008. Investigation of alternative feedstock sources for biodiesel production in Ethiopia Viz. R. communis, B. Carinata, E. guineensis and J. curcas, MSc thesis, Addiss Ababa University. 97.
Ministry of Energy and Mines, 2007. The National Bio-energy Strategy. Addis Ababa.
Mittelbach, M., Remschmidt, C., 2004. Biodiesel: The Comprehensive Handbook. Boersedruck Ges. M.B.H., Vienna National Bank of Ethiopia (NBE), (2008) Annual report.
National Fuel Quality Standards, 2004. Measuring Cetane Number: options for diesel and alternative diesel fuels, the Department of the Environment and Heritage, Australia.
Noureddini, H., Zhn, D., 1997. Kinetics of transesterification of soybean oil, J. Am. Oil. Chem. Soc., 74, 1457-1463.
Nzikou, J.M., Matos, L., Mbemba, F., Ndangui, C.B., Pambou-Tobi, N.P.G., Kimbonguila, A., Silou, Th., Linder, M., Desobry, S., 2009. Characteristics and composition of Jatropha curcas oils, variety Congo-Brazzaville. Res. J.
Appl. Sci. Eng. Technol., 1(3), 154-159.
Omarsherif, M., 2010. Estimation of variability for some morphological traits and seed oil content in local physic nut (Jathropha curcas L.) population in Eastern Amhara Region, MSc. Thesis, Wondo Genet College of Forestry
and Natural Resources. 68.
Pramanik, K., 2003. Properties and use of Jatropha curcas oil and diesel fuel blends in compression ignition engine. Renew. Energ., 28, 239–248.
Quick, G.R., 1989. Oilseeds as energy crops. In: Robbelen, G., Downey, R.K., Ashri, A. (Eds). Oil crops of the world. Their breeding and utilization. McGraw-Hill, Inc. USA.
SAS (Statistical Analysis System), 2002. SAS/STAT. Guide Version 6.12. SAS, Institute Inc. Raleigh, North Carolina: USA.
Sheehan, J., 1998. A look back at the U.S. department of energy’s aquatic species program-Biodiesel from algae (Report NREL/TP-580-24190). Golden, CO: US DOE, Nat. Renew. Energ. Lab.
Thongbai, P., Donnell, A.O., Wood, G.D., Syers, J.K., 2006. Biofuels research and development at mae fah luang university. In: The 2nd Joint International Conference on “Sustainable Energy and Environment (SEE 2006)”.
Bangkok, Thailand.
Van Gerpen, J., Shanks, B., Pruszko, R., Clements, D., Knothe, G., 2004. Biodiesel Analytical Methods. Nat. Renew. Energ. Lab. 1617 Cole Boulevard, Colorado. U.S.
Vivero, J.L., Ensermu, K., Sebsebe, D., 2010. The red list of endemic trees and shrubs of Ethiopia and Eritrea. Fauna and Flora International, Cambridge, UK.
Wilkins, A., 2006. Biodiesel. Blue diesel Pty Lmtd, Department of Agriculture, Australia. 1-9.