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Molecules 2016, 21(9), 1245; doi:10.3390/molecules21091245

On the Effect of Microwave Energy on Lipase-Catalyzed Polycondensation Reactions

1
Institute for Environmental Biotechnology, University of Natural Resources and Life Sciences, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria
2
Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
3
Austrian Centre of Industrial Biotechnology GmbH, Konrad Lorenz Strasse 20, 3430 Tulln an der Donau, Austria
*
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 27 July 2016 / Revised: 7 September 2016 / Accepted: 13 September 2016 / Published: 19 September 2016
(This article belongs to the Special Issue Chemicals from Biomass)
View Full-Text   |   Download PDF [1228 KB, uploaded 19 September 2016]   |  

Abstract

Microwave energy (MWe) is, nowadays, widely used as a clean synthesis tool to improve several chemical reactions, such as drug molecule synthesis, carbohydrate conversion and biomass pyrolysis. On the other hand, its exploitation in enzymatic reactions has only been fleetingly investigated and, hence, further study of MWe is required to reach a precise understanding of its potential in this field. Starting from the authors’ experience in clean synthesis and biocatalyzed reactions, this study sheds light on the possibility of using MWe for enhancing enzyme-catalyzed polycondensation reactions and pre-polymer formation. Several systems and set ups were investigated involving bulk and organic media (solution phase) reactions, different enzymatic preparations and various starting bio-based monomers. Results show that MWe enables the biocatalyzed synthesis of polyesters and pre-polymers in a similar way to that reported using conventional heating with an oil bath, but in a few cases, notably bulk phase polycondensations under intense microwave irradiation, MWe leads to a rapid enzyme deactivation. View Full-Text
Keywords: Candida antarctica lipase B; microwave energy; polycondensation reactions; enzymatic synthesis; bio-based monomers; bio-based polymers; platform molecules Candida antarctica lipase B; microwave energy; polycondensation reactions; enzymatic synthesis; bio-based monomers; bio-based polymers; platform molecules
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pellis, A.; Guebitz, G.M.; Farmer, T.J. On the Effect of Microwave Energy on Lipase-Catalyzed Polycondensation Reactions. Molecules 2016, 21, 1245.

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