Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media
The increment of activity and solubility in 1,4-dioxane of lipase B from Candida antarctica, lipase from Pseudomonas cepacia, and subtilisin, were investigated as a function of the methoxypoly(ethylene glycol)protein (PEGprotein) ratio employed during lyophilization. Both activity and solubility m...
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crcansciencepubl:10.1139/v02-026 2023-12-17T10:21:26+01:00 Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media Secundo, Francesco Carrea, Giacomo Veronese, Francesco Maria 2002 http://dx.doi.org/10.1139/v02-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/v02-026 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Chemistry volume 80, issue 6, page 551-554 ISSN 0008-4042 1480-3291 Organic Chemistry General Chemistry Catalysis journal-article 2002 crcansciencepubl https://doi.org/10.1139/v02-026 2023-11-19T13:39:32Z The increment of activity and solubility in 1,4-dioxane of lipase B from Candida antarctica, lipase from Pseudomonas cepacia, and subtilisin, were investigated as a function of the methoxypoly(ethylene glycol)protein (PEGprotein) ratio employed during lyophilization. Both activity and solubility markedly increased as the PEGprotein ratio was increased. The increment of activity at low PEGprotein ratios, however, was much higher than that of solubility. These data suggest that the PEG-induced activation effect is due mainly to a lyoprotection effect rather than to relaxation of diffusional limitations.Key words: hydrolases, activity, dispersion, lyoprotection, circular dichroism. Article in Journal/Newspaper Antarc* Antarctica Canadian Science Publishing (via Crossref) Canadian Journal of Chemistry 80 6 551 554 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Organic Chemistry General Chemistry Catalysis |
spellingShingle |
Organic Chemistry General Chemistry Catalysis Secundo, Francesco Carrea, Giacomo Veronese, Francesco Maria Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
topic_facet |
Organic Chemistry General Chemistry Catalysis |
description |
The increment of activity and solubility in 1,4-dioxane of lipase B from Candida antarctica, lipase from Pseudomonas cepacia, and subtilisin, were investigated as a function of the methoxypoly(ethylene glycol)protein (PEGprotein) ratio employed during lyophilization. Both activity and solubility markedly increased as the PEGprotein ratio was increased. The increment of activity at low PEGprotein ratios, however, was much higher than that of solubility. These data suggest that the PEG-induced activation effect is due mainly to a lyoprotection effect rather than to relaxation of diffusional limitations.Key words: hydrolases, activity, dispersion, lyoprotection, circular dichroism. |
format |
Article in Journal/Newspaper |
author |
Secundo, Francesco Carrea, Giacomo Veronese, Francesco Maria |
author_facet |
Secundo, Francesco Carrea, Giacomo Veronese, Francesco Maria |
author_sort |
Secundo, Francesco |
title |
Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
title_short |
Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
title_full |
Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
title_fullStr |
Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
title_full_unstemmed |
Discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
title_sort |
discriminating between dispersion and lyoprotection effects in biocatalysis in organic media |
publisher |
Canadian Science Publishing |
publishDate |
2002 |
url |
http://dx.doi.org/10.1139/v02-026 http://www.nrcresearchpress.com/doi/pdf/10.1139/v02-026 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Canadian Journal of Chemistry volume 80, issue 6, page 551-554 ISSN 0008-4042 1480-3291 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/v02-026 |
container_title |
Canadian Journal of Chemistry |
container_volume |
80 |
container_issue |
6 |
container_start_page |
551 |
op_container_end_page |
554 |
_version_ |
1785534351155396608 |