05288619 is referenced by 109 patents and cites 107 patents.

An enzymatic transesterification method for preparing a margarine oil having both low trans- acid and low intermediate chain fatty acid content is disclosed. The method includes the steps of providing a transesterification reaction mixture containing a stearic acid source material and an edible liquid vegetable oil, transesterifying the stearic acid source material and the vegetable oil using a 1-, 3-positionally specific lipase, and then finally hydrogenating the fatty acid mixture to provide a recycle stearic acid source material for a recyclic reaction with the vegetable oil. Also described is a counter-current method for preparing a transesterified oil. The method includes the steps of providing a transesterification reaction zone containing a 1-, 3-positionally specific lipase, introducing a vegetable oil into the transesterification zone, introducing a stearic acid source material, conducting a supercritical gas or subcritical liquified gas counter-current fluid, carrying out a transesterification reaction of the triglyceride stream with the stearic acid or stearic acid monoester stream in the reaction zone, withdrawing a transesterified triglyceride margarine oil stream, withdrawing a counter-current fluid phase, hydrogenating the transesterified stearic acid or stearic acid monoester to provide a hydrogenated recycle stearic acid source material, and introducing the hydrogenated recycle stearic acid source material into the reaction zone.

Title
Enzymatic method for preparing transesterified oils
Application Number
455555
Publication Number
5288619
Application Date
June 11, 1992
Publication Date
February 22, 1994
Inventor
Chrisanthus Thomas
Arlington, Heights
IL, US
Richard S Silver
Wilmette
IL, US
James J Myrick
Glencoe
IL, US
Zohar M Merchant
Wilmette
IL, US
R G Krishnamurthy
Glenview
IL, US
David K Hayashi
Chicago
IL, US
Michael T Dueber
Glenview
IL, US
Robert C Dinwoodie
Glenview
IL, US
Federico D Carvallo
Wheeling
IL, US
Peter H Brown
Morton Grove
IL, US
Agent
Fitch Even Tabin & Flannery
Assignee
Kraft General Foods
IL, US
IPC
C12N 9/20
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