Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica
Core-shell polymer particles with different properties were produced through combined suspension-emulsion polymerizations and employed as supports for immobilization of lipase B from Candida antarctica. In order to evaluate how the morphology of the particles affects the immobilization parameters, e...
Published in: | Molecules |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2014
|
Subjects: | |
Online Access: | https://doi.org/10.3390/molecules190812509 https://doaj.org/article/2fa4972fdb2b4ed58dc022aa8652acbd |
id |
ftdoajarticles:oai:doaj.org/article:2fa4972fdb2b4ed58dc022aa8652acbd |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:2fa4972fdb2b4ed58dc022aa8652acbd 2023-05-15T13:37:12+02:00 Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica Martina C. C. Pinto Denise M. G. Freire José Carlos Pinto 2014-08-01T00:00:00Z https://doi.org/10.3390/molecules190812509 https://doaj.org/article/2fa4972fdb2b4ed58dc022aa8652acbd EN eng MDPI AG http://www.mdpi.com/1420-3049/19/8/12509 https://doaj.org/toc/1420-3049 1420-3049 doi:10.3390/molecules190812509 https://doaj.org/article/2fa4972fdb2b4ed58dc022aa8652acbd Molecules, Vol 19, Iss 8, Pp 12509-12530 (2014) core-shell particles polystyrene immobilization lipase B from Candida antarctica Organic chemistry QD241-441 article 2014 ftdoajarticles https://doi.org/10.3390/molecules190812509 2022-12-31T05:50:16Z Core-shell polymer particles with different properties were produced through combined suspension-emulsion polymerizations and employed as supports for immobilization of lipase B from Candida antarctica. In order to evaluate how the morphology of the particles affects the immobilization parameters, empirical models were developed to describe the performance of the biocatalysts as a function of the specific area, volume of pores and average pore diameter of the supports. It was observed that the average pore sizes did not affect the enzymatic activities in the analyzed range of pore sizes. It was also observed that the increase of the specific area (and of the volume of pores) led to higher enzyme loadings, also leading to an increase in the esterification activity, as expected. However, when the specific area (and volume of pores) increased, the hydrolytic activity and the retention of hydrolytic activity of the biocatalysts decreased, indicating the existence of diffusional limitations for some hydrolytic reactions, probably because of the high reaction rates. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Molecules 19 8 12509 12530 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
core-shell particles polystyrene immobilization lipase B from Candida antarctica Organic chemistry QD241-441 |
spellingShingle |
core-shell particles polystyrene immobilization lipase B from Candida antarctica Organic chemistry QD241-441 Martina C. C. Pinto Denise M. G. Freire José Carlos Pinto Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
topic_facet |
core-shell particles polystyrene immobilization lipase B from Candida antarctica Organic chemistry QD241-441 |
description |
Core-shell polymer particles with different properties were produced through combined suspension-emulsion polymerizations and employed as supports for immobilization of lipase B from Candida antarctica. In order to evaluate how the morphology of the particles affects the immobilization parameters, empirical models were developed to describe the performance of the biocatalysts as a function of the specific area, volume of pores and average pore diameter of the supports. It was observed that the average pore sizes did not affect the enzymatic activities in the analyzed range of pore sizes. It was also observed that the increase of the specific area (and of the volume of pores) led to higher enzyme loadings, also leading to an increase in the esterification activity, as expected. However, when the specific area (and volume of pores) increased, the hydrolytic activity and the retention of hydrolytic activity of the biocatalysts decreased, indicating the existence of diffusional limitations for some hydrolytic reactions, probably because of the high reaction rates. |
format |
Article in Journal/Newspaper |
author |
Martina C. C. Pinto Denise M. G. Freire José Carlos Pinto |
author_facet |
Martina C. C. Pinto Denise M. G. Freire José Carlos Pinto |
author_sort |
Martina C. C. Pinto |
title |
Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
title_short |
Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
title_full |
Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
title_fullStr |
Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
title_full_unstemmed |
Influence of the Morphology of Core-Shell Supports on the Immobilization of Lipase B from Candida antarctica |
title_sort |
influence of the morphology of core-shell supports on the immobilization of lipase b from candida antarctica |
publisher |
MDPI AG |
publishDate |
2014 |
url |
https://doi.org/10.3390/molecules190812509 https://doaj.org/article/2fa4972fdb2b4ed58dc022aa8652acbd |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Molecules, Vol 19, Iss 8, Pp 12509-12530 (2014) |
op_relation |
http://www.mdpi.com/1420-3049/19/8/12509 https://doaj.org/toc/1420-3049 1420-3049 doi:10.3390/molecules190812509 https://doaj.org/article/2fa4972fdb2b4ed58dc022aa8652acbd |
op_doi |
https://doi.org/10.3390/molecules190812509 |
container_title |
Molecules |
container_volume |
19 |
container_issue |
8 |
container_start_page |
12509 |
op_container_end_page |
12530 |
_version_ |
1766089155296624640 |