Effect of Chain Length of Alcohol on the Lipase-Catalyzed Esterification of Propionic Acid in Supercritical Carbon Dioxide

Varma, Mahesh N and Madras, Giridhar (2010) Effect of Chain Length of Alcohol on the Lipase-Catalyzed Esterification of Propionic Acid in Supercritical Carbon Dioxide. In: Applied Biochemistry and Biotechnology: Part A: Enzyme Engineering and Biotechnology, 160 (8). pp. 2342-2354.

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Abstract

The esterification of propionic acid was investigated using three different alcohols, namely, isopropyl alcohol, isobutyl alcohol, and isoamyl alcohol. The variation of conversion with time for the synthesis of isoamyl propionate was investigated in the presence of five enzymes. Novozym 435 showed the highest activity, and this was used as the enzyme for investigating the various parameters that influence the esterification reaction. The Ping-Pong Bi-Bi model with inhibition by both acid and alcohol was used to model the experimental data and determine the kinetics of the esterification reaction.

Item Type:	Journal Article
Publication:	Applied Biochemistry and Biotechnology: Part A: Enzyme Engineering and Biotechnology
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Supercritical carbon dioxide; Novozym 435; Esterification; Primary alcohol; Secondary alcohol; Ping-Pong Bi-Bi mechanism
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	30 Apr 2010 11:08
Last Modified:	19 Sep 2010 06:00
URI:	http://eprints.iisc.ac.in/id/eprint/27145

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