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Synthesis of triglycerides of phenylalkanoic acids by lipase-catalyzed esterification in a solvent-free system

Paper ID Volume ID Publish Year Pages File Format Full-Text
25519 43578 2007 9 PDF Available
Title
Synthesis of triglycerides of phenylalkanoic acids by lipase-catalyzed esterification in a solvent-free system
Abstract

Immobilized Candida antarctica lipase B catalyzed the synthesis of triglycerides from glycerol and phenylalkanoic acids in a solvent-free system. 4-Phenylbutyric acid was the best acyl donor and displayed the highest synthetic rate of triphenylbutyrin (glyceryl triphenylbutyrate) at 65 °C among various phenylalkanoic acids with straight alkyl chains. The external mass transfer between the immobilized lipase and the bulk reaction mixture was limited. Different methods of removing water during the lipase-catalyzed esterification including spontaneous evaporation, the use of saturated salts solutions, and the use of molecular sieves were studied. The highest yield of triphenylbutyrin at 65 °C was 98%, by the elimination of water using molecular sieves in a solvent-free system. The glycerol was almost completely esterified to triphenylbutyrin in excess phenylbutyric acid with various substrate molar ratios.

Keywords
Glyceride synthesis; Lipase; Phenylalkanoic acids; Phenylbutyric acid; Solvent-free; Triphenylbutyrin
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 127, Issue 4, 20 January 2007, Pages 694–702
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