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Significant changes in the transesterification activity of free and mesoporous-immobilized Rhizopus oryzae lipase in ionic liquids

Paper ID Volume ID Publish Year Pages File Format Full-Text
24483 43518 2010 3 PDF Available
Title
Significant changes in the transesterification activity of free and mesoporous-immobilized Rhizopus oryzae lipase in ionic liquids
Abstract

We examined the activity of free Rhizopus oryzae lipase (ROL) and ROL immobilized on mesoporous materials in transesterification reactions in various dialkylimidazolium-cation based ionic liquids. For free ROL, the highest activity (0.39 U/mg protein) was obtained in [OMIm][PF6] followed by that (0.28 U/mg protein) in [BMIm][PF6]. Specific activities of ROL immobilized on mesocellular foam (MCF) were only 0.47 and 0.43 U/mg protein in [OMIm][PF6] and [BMIm][PF6], respectively. However, the specific activities of ROL immobilized on octadecyl functionalized MCF (C18-MCF) increased significantly to 15.64 and 14.84 U/mg protein in [OMIm][PF6] and [BMIm][PF6], respectively. Consequently, ROL immobilized on C18-MCF is a promising biocatalyst for biotransformation reactions in ionic liquids.

Keywords
Ionic liquids; Transesterification; Rhizopus oryzae lipase; Immobilization; Mesoporous materials
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Significant changes in the transesterification activity of free and mesoporous-immobilized Rhizopus oryzae lipase in ionic liquids
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 145, Issue 3, 1 February 2010, Pages 281–283
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