Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400016 |
Resumo: | Three strains of Bacillus sp. (BACRP, BACNC-1 and BACAR) were isolated from soil adhered to cassava husk. CGTase specific activity for the three isolated strains was higher when cultivated at 40ºC. Potato starch, cassava starch, maltodextrin and glucose were used as carbon source and growth temperatures varied from 25 to 55ºC. The three isolates presented higher CGTase specific activity when cultivated with potato starch at 40ºC. Isolated BACRP and BACAR presented specific activity of 4.0x10-3 and 2.2x10-3 U/mg prot at pH 7.0, respectively, when cultivated in mediums added with NaCl 2%; at pH 10,0 their activities were of 3.4x10-3 and 3.0x10-3 U/mg prot, respectively, in the same concentration of NaCl. On the other hand, the isolated BACNC-1 presented activity specific of 2.4x10-3 U/mg prot when cultivated at pH 7.0 added of NaCl 1%, and at pH 10.0 the specific activity was of 3.4x10-3 U/mg prot without NaCl addition. This work also showed the presence of cyclodextrins formed during fermentation process and that precipitation with acetone or lyophilization followed by dialysis was efficient at removing CDs (cyclodextrins), thus, eliminating interference in the activity assays. The enzyme produced by the BACAR strain was partially purified and β-CD was liberated as a reaction product. |
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Brazilian Journal of Microbiology |
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Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soilcyclodextrin glycosyltransferaseCGTase productionThree strains of Bacillus sp. (BACRP, BACNC-1 and BACAR) were isolated from soil adhered to cassava husk. CGTase specific activity for the three isolated strains was higher when cultivated at 40ºC. Potato starch, cassava starch, maltodextrin and glucose were used as carbon source and growth temperatures varied from 25 to 55ºC. The three isolates presented higher CGTase specific activity when cultivated with potato starch at 40ºC. Isolated BACRP and BACAR presented specific activity of 4.0x10-3 and 2.2x10-3 U/mg prot at pH 7.0, respectively, when cultivated in mediums added with NaCl 2%; at pH 10,0 their activities were of 3.4x10-3 and 3.0x10-3 U/mg prot, respectively, in the same concentration of NaCl. On the other hand, the isolated BACNC-1 presented activity specific of 2.4x10-3 U/mg prot when cultivated at pH 7.0 added of NaCl 1%, and at pH 10.0 the specific activity was of 3.4x10-3 U/mg prot without NaCl addition. This work also showed the presence of cyclodextrins formed during fermentation process and that precipitation with acetone or lyophilization followed by dialysis was efficient at removing CDs (cyclodextrins), thus, eliminating interference in the activity assays. The enzyme produced by the BACAR strain was partially purified and β-CD was liberated as a reaction product.Sociedade Brasileira de Microbiologia2008-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400016Brazilian Journal of Microbiology v.39 n.4 2008reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822008000400016info:eu-repo/semantics/openAccessMenocci,VivianGoulart,Antonio JoséAdalberto,Paulo RobertoTavano,Olga LuisaMarques,Daniela ParreiraContiero,JonasMonti,Rubenseng2009-04-06T00:00:00Zoai:scielo:S1517-83822008000400016Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2009-04-06T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
title |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
spellingShingle |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil Menocci,Vivian cyclodextrin glycosyltransferase CGTase production |
title_short |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
title_full |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
title_fullStr |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
title_full_unstemmed |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
title_sort |
Cyclodextrin glycosyltransferase production by new Bacillus sp. strains isolated from brazilian soil |
author |
Menocci,Vivian |
author_facet |
Menocci,Vivian Goulart,Antonio José Adalberto,Paulo Roberto Tavano,Olga Luisa Marques,Daniela Parreira Contiero,Jonas Monti,Rubens |
author_role |
author |
author2 |
Goulart,Antonio José Adalberto,Paulo Roberto Tavano,Olga Luisa Marques,Daniela Parreira Contiero,Jonas Monti,Rubens |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Menocci,Vivian Goulart,Antonio José Adalberto,Paulo Roberto Tavano,Olga Luisa Marques,Daniela Parreira Contiero,Jonas Monti,Rubens |
dc.subject.por.fl_str_mv |
cyclodextrin glycosyltransferase CGTase production |
topic |
cyclodextrin glycosyltransferase CGTase production |
description |
Three strains of Bacillus sp. (BACRP, BACNC-1 and BACAR) were isolated from soil adhered to cassava husk. CGTase specific activity for the three isolated strains was higher when cultivated at 40ºC. Potato starch, cassava starch, maltodextrin and glucose were used as carbon source and growth temperatures varied from 25 to 55ºC. The three isolates presented higher CGTase specific activity when cultivated with potato starch at 40ºC. Isolated BACRP and BACAR presented specific activity of 4.0x10-3 and 2.2x10-3 U/mg prot at pH 7.0, respectively, when cultivated in mediums added with NaCl 2%; at pH 10,0 their activities were of 3.4x10-3 and 3.0x10-3 U/mg prot, respectively, in the same concentration of NaCl. On the other hand, the isolated BACNC-1 presented activity specific of 2.4x10-3 U/mg prot when cultivated at pH 7.0 added of NaCl 1%, and at pH 10.0 the specific activity was of 3.4x10-3 U/mg prot without NaCl addition. This work also showed the presence of cyclodextrins formed during fermentation process and that precipitation with acetone or lyophilization followed by dialysis was efficient at removing CDs (cyclodextrins), thus, eliminating interference in the activity assays. The enzyme produced by the BACAR strain was partially purified and β-CD was liberated as a reaction product. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-01 |
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=S1517-83822008000400016 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400016 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-83822008000400016 |
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 |
Sociedade Brasileira de Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.39 n.4 2008 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122201913425920 |