Kinetics of esterification of lauric acid with fatty alcohols by lipase: effect of fatty alcohol | Zendy

Shintre M S | Zendy; Ghadge R S | Zendy; Sawant S B | Zendy

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Kinetics of esterification of lauric acid with fatty alcohols by lipase: effect of fatty alcohol

Author(s) -

Shintre M S,

Ghadge R S,

Sawant S B

Publication year - 2002

Publication title -

journal of chemical technology and biotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.64

H-Index - 117

eISSN - 1097-4660

pISSN - 0268-2575

DOI - 10.1002/jctb.684

Subject(s) - lauric acid , chemistry , alcohol , lipase , fatty acid , kinetics , organic chemistry , fatty alcohol , reaction rate , solvent , ethanol , chromatography , catalysis , enzyme , physics , quantum mechanics

Lauric acid has been esterified with some C 1 –C 18 aliphatic alcohols by a commercial lipase, Lipolase 100 L, using isooctane as a solvent. When lauric acid and fatty alcohols were taken in the mole ratio 1:1, first order kinetics were observed for all the alcohols studied. The highest reaction rate was observed for n ‐butyl alcohol. Lauric acid was esterified with stearyl alcohol, in varying acid to alcohol mole ratios to explain the first order kinetics of the reaction. A kinetic model for the lipase‐catalysed esterification in a biphasic organic–aqueous system has been proposed. Based on the interfacial substrate concentration, an analytical rate equation for initial rate of the reaction was derived and confirmed with the experimental data. © 2002 Society of Chemical Industry

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