Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100057 |
Resumo: | ABSTRACT The present study evaluated the purification of inulinase by changing the ionic strength of the medium by addition of NaCl and CaCl2 followed by precipitation with n-propyl alcohol or iso-propyl alcohol. The effects of the concentration of alcohols and the rate of addition of alcohols in the crude extract on the purification yield and purification factor were evaluated. Precipitation caused an activation of enzyme and allowed purification factors up to 2.4-fold for both alcohols. The purification factor was affected positively by the modification of the ionic strength of the medium to 0.5 mol.L-1 NaCl before precipitation with the alcohol (n-propyl or iso-propyl). A purification factor of 4.8-fold and an enzyme yield of 78.1 % could be achieved by the addition of 0.5 mol.L-1 of NaCl to the crude extract, followed by the precipitation with 50 % (v/v) of n-propyl alcohol, added at a flow rate of 19.9 mL/min. |
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Anais da Academia Brasileira de Ciências (Online) |
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Purification of inulinases by changing the ionic strength of the medium and precipitation with alcoholsinulinasesionic strengthprecipitationlow cost.ABSTRACT The present study evaluated the purification of inulinase by changing the ionic strength of the medium by addition of NaCl and CaCl2 followed by precipitation with n-propyl alcohol or iso-propyl alcohol. The effects of the concentration of alcohols and the rate of addition of alcohols in the crude extract on the purification yield and purification factor were evaluated. Precipitation caused an activation of enzyme and allowed purification factors up to 2.4-fold for both alcohols. The purification factor was affected positively by the modification of the ionic strength of the medium to 0.5 mol.L-1 NaCl before precipitation with the alcohol (n-propyl or iso-propyl). A purification factor of 4.8-fold and an enzyme yield of 78.1 % could be achieved by the addition of 0.5 mol.L-1 of NaCl to the crude extract, followed by the precipitation with 50 % (v/v) of n-propyl alcohol, added at a flow rate of 19.9 mL/min.Academia Brasileira de Ciências2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100057Anais da Academia Brasileira de Ciências v.89 n.1 2017reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765201720160367info:eu-repo/semantics/openAccessGOLUNSKI,SIMONESILVA,MARCELI F.MARQUES,CAMILA T.ROSSETO,VANUSAKAIZER,ROSILENE R.MOSSI,ALTEMIR J.RIGO,DIANEDALLAGO,ROGÉRIO M.DI LUCCIO,MARCOTREICHEL,HELENeng2017-04-11T00:00:00Zoai:scielo:S0001-37652017000100057Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2017-04-11T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
title |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
spellingShingle |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols GOLUNSKI,SIMONE inulinases ionic strength precipitation low cost. |
title_short |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
title_full |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
title_fullStr |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
title_full_unstemmed |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
title_sort |
Purification of inulinases by changing the ionic strength of the medium and precipitation with alcohols |
author |
GOLUNSKI,SIMONE |
author_facet |
GOLUNSKI,SIMONE SILVA,MARCELI F. MARQUES,CAMILA T. ROSSETO,VANUSA KAIZER,ROSILENE R. MOSSI,ALTEMIR J. RIGO,DIANE DALLAGO,ROGÉRIO M. DI LUCCIO,MARCO TREICHEL,HELEN |
author_role |
author |
author2 |
SILVA,MARCELI F. MARQUES,CAMILA T. ROSSETO,VANUSA KAIZER,ROSILENE R. MOSSI,ALTEMIR J. RIGO,DIANE DALLAGO,ROGÉRIO M. DI LUCCIO,MARCO TREICHEL,HELEN |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
GOLUNSKI,SIMONE SILVA,MARCELI F. MARQUES,CAMILA T. ROSSETO,VANUSA KAIZER,ROSILENE R. MOSSI,ALTEMIR J. RIGO,DIANE DALLAGO,ROGÉRIO M. DI LUCCIO,MARCO TREICHEL,HELEN |
dc.subject.por.fl_str_mv |
inulinases ionic strength precipitation low cost. |
topic |
inulinases ionic strength precipitation low cost. |
description |
ABSTRACT The present study evaluated the purification of inulinase by changing the ionic strength of the medium by addition of NaCl and CaCl2 followed by precipitation with n-propyl alcohol or iso-propyl alcohol. The effects of the concentration of alcohols and the rate of addition of alcohols in the crude extract on the purification yield and purification factor were evaluated. Precipitation caused an activation of enzyme and allowed purification factors up to 2.4-fold for both alcohols. The purification factor was affected positively by the modification of the ionic strength of the medium to 0.5 mol.L-1 NaCl before precipitation with the alcohol (n-propyl or iso-propyl). A purification factor of 4.8-fold and an enzyme yield of 78.1 % could be achieved by the addition of 0.5 mol.L-1 of NaCl to the crude extract, followed by the precipitation with 50 % (v/v) of n-propyl alcohol, added at a flow rate of 19.9 mL/min. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100057 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100057 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0001-3765201720160367 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.89 n.1 2017 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
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1754302863215951872 |