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Kinetics of enzymatic synthesis of geranyl butyrate by transesterification in various supercritical fluids

Paper ID Volume ID Publish Year Pages File Format Full-Text
3953 200 2010 6 PDF Available
Title
Kinetics of enzymatic synthesis of geranyl butyrate by transesterification in various supercritical fluids
Abstract

The transesterification of methyl butyrate, ethyl butyrate and butyl butyrate to geranyl butyrate was investigated in supercritical carbon dioxide. The effect of chain length of the butyrate on the rate of transesterification was investigated. The initial rates followed the trend: ethyl butyrate < butyl butyrate < methyl butyrate. The transesterification of butyl butyrate to geranyl butyrate in various supercritical fluids such as ethylene, methane, ethane was also examined. The initial rate of transesterification of butyl butyrate in different supercritical fluids followed the order: ScCO2 < ScC2H6 < ScC2H4 < ScCH4. The highest initial rate was obtained in supercritical methane and the reasons for this observation were proposed. 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 reaction.

Keywords
Supercritical carbon dioxide; Supercritical methane; Novozym 435; Transesterification; Ping-Pong Bi–Bi mechanism; Kinetics
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Kinetics of enzymatic synthesis of geranyl butyrate by transesterification in various supercritical fluids
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 49, Issue 2, 15 April 2010, Pages 250–255
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
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Full-text PDF Download
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