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Lipasekatalysierte Triglyceridumesterung in einem lösungsmittelfreien Prozeß. I. Analytik und Umesterungskinetik

Lipase-catalyzed interesterification of triglycerides in a solvent-free process. I. Analytics and kinetics of the interesterification
 
: Bauer, W.; Luck, T.

Fett 93 (1991), Nr.2, S.41-49 : Abb.,Tab.,Lit.
ISSN: 0931-5985
ISSN: 1521-4133
Deutsch
Zeitschriftenaufsatz
Fraunhofer ILV ( IVV) ()
Diglyceridbildung; Einfluß des Wassergehaltes; formation of diglycerides; influence of temperature; interesterification; kinetics; Kinetik; lipase; lösungsmittelfreier Prozeß; solvent-free process; Temperatureinfluß; triglycerid composition; Triglyceridzusammensetzung; Umesterung

Abstract
The interesterification of lipids catalyzed by immobilized lipases is an interesting substitute to the chemical interesterification. Studies using an industrial-manufactured biocatalyst in a solvent-free process were performed. The kinetics of the interesterification were examined as a function of temperature and water content of the reaction system. The reaction rate of the interesterification can be described with reversible first order reaction kinetics. A part of the triglycerides of the substrate is hydrolyzed by a lipasecatalyzed lipolysis. Hydrolysis products are 1,2(2,3) and 1,3-diglycerides. This shows that an unspecific interesterification is catalyzed if the residence time is extended.

: http://publica.fraunhofer.de/dokumente/PX-22166.html