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Biodiesel production from Neem seeds (Azadirachta indica A. Juss) oil by its base-catalyzed Transesterification and its Blending with Diesel

Author Affiliations

  • 1Laboratoire de Chimie Agro-Industrielle (LCA), ENSIACET, INP Toulouse, 4 Allée Emile Monso - BP 44362 - 31030 Toulouse Cedex 4, FRANCE
  • 2Laboratoire d’Electrochimie et des Procédés Membranaires (LEPM), Université Cheikh Anta Diop de Dakar, BP 5085 Dakar-fann, SENEGAL

Res.J.chem.sci., Volume 5, Issue (10), Pages 13-19, October,18 (2015)


Biodiesel, a non-toxic, biodegradable and renewable fuel can be a solution to non-environmentally friendly and exhaustible fossil fuels. The triglycerides transesterification is the most used process in the biodiesel production. However, the blending of the oil with diesel is also used. Neem (Azadirachta indica A. Juss) seeds oil (NSO), a non-edible oil available in large quantities in Senegal may be a second generation feedstock for biofuel production. In this research, the study is focused on its transformation into biodiesel by NaOH catalyzed transesterification and its blending with diesel. The NSO physicochemical properties were determined and compared to those of diesel. The NSO consists of four major fatty acids: oleic acid (C18:1), linoleic acid (C18:2), stearic acid (C18:0) and palmitic acid (C16:0). These fatty acids represent 95.80% of all the fatty acids present in the NSO. The study of the effect of catalyst level, performed at 75°C and for molar ratio alcohol-oil 6:1 has revealedthat a rate catalyst of 1% (w/woil) is more effective. The kinetic study of the reaction confirmed the hight speed of the formation of the ethyl esters (NSOB) with conversion maximum rate achieved after 90 minutes. The physical and thermal properties of neem seeds oil biodiel (NSOB) are close to those of diesel. However, those of the SNO-diesel blend (NSODB) are closer to those of the diesel.


  1. Tiwari A.K., Kumar A. and Raheman H., Biodiesel production from jatropha oil (Jatropha curcas) with high free fatty acids: An optimized process, Biomass and Bioenergy, 31, 569-575 (2007)
  2. Barnwal B.K. and Sharma M.P., Prospects of biodiesel production from vegetable oils in India, Renew. Sustain. Energ., 9, 363-378 (2005)
  3. Chopra I.C., Gupta K.C. and Nazir B.N., Preliminary study of antibacterial substance from Melia azadirachta, Indian J. Med. Research, 40, 511-515 (1952)
  4. Fortin D., Lô M. And Maymart G., Plantes médicinales du Sahel, ENDA Editions, Dakar, (1997)
  5. Schmutterer H., The neem tree, Azadirachta indica A, Juss and other meliaceous plants, VCH: Weinheim (1995)
  6. Berhaut J., Flore illustrée du Sénégal, Tome VI. Dicotylédones: Linacées à Nymphycées, Dakar, (1979)
  7. Schrnutterer H., Properties and potential of natural pesticides from the neem tree, Azadirachta indica, Amrr. Rev. Etlromol., 35, 271-297 (1990)
  8. Kaura S.K., Gupta S.K. and Chowdhury J.B., Morphological and oil content variation in seeds of Azadirachta indica A. Juss. (Neem) from northern and western provenances of India, Plant Foods for Hum. Nutr., 52, 293-298 (1998)
  9. Djenontin Tindo S., Amusant N., Dangou J., Wotto D.V., Avlessi F., Dahouénon-Ahoussi E., Lozano P., Pioch D. and Sohounhloué K.C.D., Screening of repellent, termiticidal and preventive activities on wood, of Azadirachta indica and Carapa procera (Meliaceae) seeds oils, ISCA J. Biological Sciences., 1(3), 25-29(2012)
  10. Res. J. Chem. Sci. International Science Congress Association 19indica A. Juss) - A Nature's Drugstore: An overview, ISCA International Research. J. Biological Sciences., 1(6), 76-79 (2012)
  11. Haidara A.O., Valorisation d’une huile végétale tropicale : l’huile de pourghère, Mémoire Maitrise, Université de Sherbrooke, Canada (1996)
  12. Pramanik K., Properties and use of Jatropha curcas oil and diesel fuel blends in compression ignition engine, Int. J. Renewable Energy., 28, 239-248 (2003)
  13. Parawira W., Biodiesel production from Jatropha curcas: a review, Scientific Res. and Essays., 5(14), 1796-1808 (2010)
  14. Clark S.J., Wagner L., Schrock M.D. and Piennaar P.G., Methyl and ethyl soybean esters as renewable fuels for diesel engines, J. of the American Oil Chemists’ Society., 61, 1632-1638 (1984)
  15. Dorado M.P., Ballesteros E., Lopezand F.J. and Mittelbatch M., Optimization of alkali-catalyzed transesterification of Brassica carinata oil for biodiesel production, Energy and Fuels., 18, 77-83 (2004)
  16. Karnwal A., Kumar N., Hasan M.M., Chaudhary R., Siddiquee A.N. and Khan Z.A., Production of biodiesel from Thumba oil: Optimization of process parameters, Iranica J. of Energy and Environment., 1(4), 352-358 (2010)
  17. Sinha S., Agarwal A.K., Garg S., Biodiesel development from rice bran oil: Transesterification process optimizationand fuel characterization, Energy Conver. and Management., 49(5), 1248-1257 (2008)
  18. Ma F., Clements I.D. and Hanna M.A., The effect of catalyst, free fatty acids and water on transesterification of beef tallow, Trans ASAE., 41, 1261-1264 (1998)
  19. Freedman B., Pryde E.H. and Mounts T.L., Variables affecting the yields of fatty esters from transesterified vegetable oils, J. of American Oil Chemists’ Society., 61,1638-1643 (1984)
  20. Goordrum J.W., Volatility and boiling points of biodiesel from vegetable oils and tallow, Biomass and Bioenergy., 22, 205-211 (2002)
  21. Vaitilingom G., Extraction, conditionnement et utilisation des huiles végétales pures biocarburant, Conférence Internationale “Enjeu et perspectives des biocarburants pour l’Afrique”., Ouagadougou, Burkina Faso (2007)
  22. Musa U. and Folorusho A., Characteristics of a typical Nigerian Jatropha curcas oil seeds for biodiesel production, ISCA Research J. Chemical Sciences.,2(10),7-12 (2012)
  23. Bobade S.N. and Khyade V.B., Preparation of methyl ester (Biodiesel) from Karanja (Pongamia Pinnata) oil, ISCA Research J. Chemical Sciences., 2(8), 43-50 (2012)
  24. Kaushik N. and Vir S., Variations in fatty acid composition of neem seeds collected from the Rajasthan state of India, Biochemical Soc. Transactions., 28(6),880-882 (2000)
  25. Syam A.M., Ynus R., Ghazi T.I.M. and Yaw T.C.S., Methanolysis of Jatropha oil in presence of potassium hydroxide catalyst, J. of Applied Sciences.,9(17), 3161-3165 (2009)
  26. Buasri A., Chaiyut N. and Ketlekha P., Mongkolwatee W., Boonrawd S., Biodiesel production from crude palm oil witha high content of free fatty acids and fuel properties, CMU. J. Nat. Sciences., 8(1), 115-124 (2009)
  27. Deshumukh S.J. and Bhuyar L.B., Transesteried Hingan (Balanites) oil as a fuel for compression ignition engines, Biomass and Bioenergy., 33, 108-112 (2009)
  28. Ban K., Kaieda M., Matsumoto T., Kondo A. and Fukuda H., Whole cell biocatalyst for biodiesel fuel production utilising Rhizopus oryzae cells immobilised within biomass support particles, Biochem. Eng., 8, 39-43 (2001)
  29. Mishra S.R., Mohanty M.K. and Pattanaik A.K., Preparation of Biodiesel from Crude oil of Simarouba glauca using CaO as a Solid Base Catalyst, ISCA Research J.of Recent Sciences., 1(9), 49-53 (2012)
  30. Vaitilingom G., Utilisations énergétiques de l’huile de coton, Cahiers Agricultures., 15(2006)
  31. ASTM (American Society for Testing and Materials)., Spécifications sénégalaises applicables aux carburantsNorme sur le Diesel (2011)