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2013 | 15 | 1 | 74-77

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Optimization Of Protocol For Biodiesel Production Of Linseed (Linum Usitatissimum L.) Oil


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Attempts were made to optimize variables affecting the yield of linseed oil biodiesel in a base catalyzed transesterification reaction. The variables studied were reaction temperature (40-70oC), catalyst (NaOH) concentration (0.1-1.5%) and reaction time (30-180 min). The conversion of linseed oil into methyl esters was confirmed through analytical methods like 1H NMR, gas chromatography (GC) and refractometer. The maximum biodiesel yield (97±1.045% w/w) was obtained at 0.5% catalyst concentration, 65oC temperature, 180 min reaction time and 6:1 molar ratio of methanol to oil. 1H NMR confirmed the practically obtained % conversion of triglycerides into methyl esters which was further evidenced by refractometer analyses. The refractive index of biodiesel samples was lower than pure linseed oil. GC analysis confirmed the presence of linolenic acid (C18:3) as the dominant fatty acid (68 wt. %) followed by oleic acid (C18:1), linoleic acid (C18:2) and stearic acid (C18:0) respectively. The physical properties of linseed oil biodiesel like specific gravity (0.90 g/cm3) and flash point (177oC) were higher than American Society for Testing and Materials standards (ASTM 6751) for biodiesel. However, kinematic viscosity (3.752 mm2/s) was in the range of ASTM standards.










Physical description


1 - 03 - 2013
27 - 03 - 2013


  • Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
  • Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan
  • Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan


  • 1. Peterson, C.L., Reece, D.L., Cruz, R. & Thompson, J. (1992). In: Proceedings of an alternative energy conference of ASAE. 99-110.
  • 2. Anh, N. & Phan, T.M.P. (2008). Biodiesel production from waste cooking oils. Fuel. 87, 3490-3496. DOI: 10.1016/j. fuel.2008.07.008.[Crossref]
  • 3. AOAC, Official methods of analysis. 15th ed. Association of Official Analytical Chemists, Arlington, VA (1990).
  • 4. Pearson, D. (1976). The Chemical Analysis of Food. Churchill, Livingstone, pp. 488-496.
  • 5. Akubugwo, I.E. & Ugbogu, A.E. (2007). Physiochemical studies on oils from five selected Nigerian plant seeds. Pak. J. Nut. 6, 75-78.
  • 6. Rashid U. & Anwar, F. (2008). Production of Biodiesel through Base-Catalyzed Transesterification of Safflower Oil Using an Optimized Protocol. Energy Fuel. 22, 1306-1312. DOI: 10.1021/ef700548s.[Crossref]
  • 7. Camas, N., Cirak, C. & Esendal, E. (2007). Seed yield, oil content and fatty acids composition of safflower (Carthamus tinctorius L.) grown in northern Turkey conditions. UniOndokuz Mayıs J. Fac. Agric. 22, 98-104.
  • 8. American Standards for Testing of Materials. (2003). American Society of Agricultural Engineers (ASAE), St. Joseph, MI.
  • 9. Nosheen, A., Bano A. & Ullah, F. (2012). Optimization of biodiesel production from Yellow sarson (Brassica campestris L.) oil. Energy Sourc. Part A. 35, 278-281. DOI:10.1080/1556 7036.2010.511431.[Crossref]
  • 10. Ahmad, M., Khan, M.A., Zafar, M. & Sultana, S. (2010). Environment friendly renewable energy from Sesame biodiesel. Energy Sourc. Part A, 32 (2), 189-196. DOI: 10.1080/15567030802467480.[Crossref][WoS]
  • 11. Eevera, T., Rajendran, K. & Saradha, S. (2009). Biodiesel production process optimization and characterization to assess the suitability of the product for varied environmental conditions. Renew. Energy. 34, 762-765. DOI: 10.1016/j.renene.2008.04.006.[WoS][Crossref]
  • 12. Ma, F., Clements, L.D. & Hanna, M.A. (1998). The effects of catalyst, free fatty acids, and water on transesterification of beef tallow. Transact. Am. Soc. Agric. Eng. 41, 1261-1264. American Society of Agricultural Engineers 0001-2351/98/4105-1261.
  • 13. Leung D.Y.C. & Guo, Y. (2006). Transesterification of neat and used frying oil: optimization for biodiesel production. Fuel Process. Technol. 87, 883-890. DOI: 10.1016/j.fuproc.2006.06.003.[Crossref]
  • 14. Tariq, M., Ali, S., Ahmad, F., Ahmad, M., Zafar, M., Khalid, N. & Khan, M.A. (2011). Identification, FT-IR, NMR (1H and 13C) and GC/MS studies of fatty acid methyl esters in biodiesel from rocket seed oil. Fuel Process.Technol. 91, 336-341. DOI: 10.1016/j.fuproc.2010.09.025.[Crossref][WoS]
  • 15. Sales, A. (2011). Production of biodiesel from sunflower oil and ethanol by base catalyzed Transesterification. Department of Chemical Engineering Royal Institute of Technology (KTH) Stockholm, Sweden.
  • 16. MacLeod. C. (2008). Evaluation of Heterogeneous Catalysts for Biodiesel Production. School of Chemical Engineering and Advanced Material, Newcastle University.
  • 17. Domínguez, L.Á.A. (1996). Biofuels: use of vegetable oils as renewable energy. Madrid: Ministry of Agriculture, Fisheries and Food. pp. 203, ISBN 84-491-0181-6.
  • 18. Falate, R., Nike, K., da Costa Neto, P.R., Cação Jr, E., Muller, M., Kalinowski, H.J. & Fabris, J.L. (2007). Alternative technique for biodiesel quality control using an optical fiber long-period grating sensor. Quim. Nova. 30, 1677. DOI: 10.1590/ S0100-40422007000700034.[WoS][Crossref]
  • 19. Ali, Y., Hanna, M.A. & Cuppett, S.L. (1995). Fuel properties of tallow and soybean oil esters. J. Am. Oil Chem. Soc. 72, 1557. DOI: 10.1007/BF02577854.[Crossref]
  • 20. Pinzi, S., Leiva, D., Arzamendi, G., Gandia, L.M. & Dorado, M.P. (2011). Multiple response optimization of vegetable oils fatty acid composition to improve biodiesel physical properties. Biores. Technol. 102, 7280-7288. DOI: 10.1016/j.biortech.2011.05.005.[Crossref]
  • 21. Sanford, S.D., White, J.M., Shah, P.S., Wee, C., Valverde, M.A. & Meier G.R. (2009). Feedstock and biodiesel characteristics report; Renewable Energy Group, Inc; www.regfuel.com
  • 22. Bajpai, D. & Tyagi, V.K. (2006). Biodiesel: Source, Production, Composition, Properties and Its Benefits. J. Oleo Sci. 55 (10), 487-502. DOI: 10.5650/jos.55.487.[Crossref]
  • 23. Najeeb, U., Mirza, M.Y., Jilani, G., Mubashir, A.K. & Zhou, W.J. (2012). Sesame. In S.K. Gupta (Ed.), TechnologicalInnovations in Major World Oil Crops, Vol 1: Breeding, (pp. 131-145). Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA.
  • 24. Ullah, F. & Bano, A. (2011). Effect of plant growth regulators on oil yield and biodiesel production of safflower (Carthamus tinctorius L.). Braz. J. Plant Physiol. 23, 27-31. DOI: 10.1590/S1677-04202011000100005.[Crossref]

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