Abstract
Propan-2-ol was used as an acyl acceptor for immobilized lipase-catalyzed preparation of biodiesel. The optimum conditions for transesterification of crude jatropha (Jatropha curcas), karanj (Pongamia pinnata) and sunflower (Helianthus annuus) oils were 10% Novozym-435 (immobilized Candida antarctica lipase B) based on oil weight, alcohol to oil molar ratio of 4:1 at 50 °C for 8 h. The maximum conversions achieved using propan-2-ol were 92.8, 91.7 and 93.4% from crude jatropha, karanj and sunflower oils, respectively. Reusability of the lipase was maintained over 12 repeated cycles with propan-2-ol while it reached to zero by 7th cycle when methanol was used as an acyl acceptor, under standard reaction conditions.
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Revisions requested 22 December 2005; Revisions received 26 January 2006
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Modi, M.K., Reddy, J.R.C., Rao, B.V.S.K. et al. Lipase-mediated Transformation of Vegetable Oils into Biodiesel using Propan-2-ol as Acyl Acceptor. Biotechnol Lett 28, 637–640 (2006). https://doi.org/10.1007/s10529-006-0027-2
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DOI: https://doi.org/10.1007/s10529-006-0027-2