Esterification of Oleic Acid and Bioalcohols Using Immobilized Lipase

Abstract:

Biodiesel has been receiving significant attention as a renewable and nonpolluting fuel. In this study, oleic acid and bioalcohols (ethanol and butanol) were used as substrates for biodiesel production. The reactions were performed in a solvent-free system using immobilized lipase (Novozym 435) as biocatalyst in a batch esterification process. The optimal conditions were 45°C, oleic acid to alcohol molar ratio of 1:2, Novozym 435 loading at 5% based on oleic acid weight and 250 rpm, in which the free fatty acid (FFA) conversion at 91.0% was obtained after 12 hours of the reaction.

• Periodical: Advanced Materials Research (Volumes 724-725)
• Pages: 1154-1157
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.724-725.1154
• Online since: August 2013
• Authors: Sawittree Mulalee, Jiranan Chanprasert, Piboon Kerdpoksup, Netnapa Sawangpanya Sawangpanya, Muenduen K.M. Phisalaphong
• Keywords: Bio-Diesel, Esterification, Novozym 435, Oleic Acid

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