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Lipase-catalyzed synthesis of glucose fatty acid ester using ionic liquids mixtures

Paper ID Volume ID Publish Year Pages File Format Full-Text
24969 43549 2008 4 PDF Available
Title
Lipase-catalyzed synthesis of glucose fatty acid ester using ionic liquids mixtures
Abstract

Novozym 435-catalyzed synthesis of 6-O-lauroyl-d-glucose in ionic liquids (ILs) was investigated. The highest lipase activity was obtained in water-miscible [Bmim][TfO] which can dissolve high concentration of glucose, while the highest stability of lipase was shown in hydrophobic [Bmim][Tf2N]. The optimal activity and stability of lipase could be obtained in [Bmim][TfO] and [Bmim][Tf2N] mixture (1:1, v/v). Specifically, the activity of lipase was increased from 1.1 to 2.9 μmol min−1 g−1 by using supersaturated glucose solution in this mixture, compared with reaction using saturated solution. After 5 times reuse of lipase, 86% of initial activity was remained in this mixture, while the residual activity in pure [Bmim][TfO] was 36%. Therefore, the productivity obtained by using ILs mixtures was higher than those in pure ILs.

Keywords
[Bmim][PF6], 1-butyl-3-methylimidazolium hexafluorophosphate; [Bmim][TfO], 1-butyl-3-methylimidazolium trifluoromethanesulfonate; [Bmim][Tf2N], 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amideIonic liquids mixtures; Glucose ester; Lipase; S
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Lipase-catalyzed synthesis of glucose fatty acid ester using ionic liquids mixtures
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 133, Issue 4, 29 February 2008, Pages 486–489
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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