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The pronounced effect of water activity on the positional selectivity of Novozym 435 during 1,3-diolein synthesis by esterification

Paper ID Volume ID Publish Year Pages File Format Full-Text
51644 46849 2010 3 PDF Available
Title
The pronounced effect of water activity on the positional selectivity of Novozym 435 during 1,3-diolein synthesis by esterification
Abstract

We have investigated the effect of water activity on the positional selectivity of the immobilized lipase Novozym 435 during the esterification of oleic acid with glycerol for 1,3-diolein preparation. The highest preferential selectivity of Novozym 435 to 1-position over 2-position of the glycerol molecular was achieved when the water activity was 0.53. The mechanism by which the enzyme favors or disfavors the selectivity at various water activities may be related to the changes in the internal flexibility of the enzyme which depends on the effective hydration.

Keywords
Water activity; Positional selectivity; Novozym 435; 1,3-Diolein
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The pronounced effect of water activity on the positional selectivity of Novozym 435 during 1,3-diolein synthesis by esterification
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 5, 25 January 2010, Pages 356–358
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us