Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants

The influence of different commercial surfactants on the enzymatic activity of a commercial alpha-amylase from Bacillus licheniformis (Termamyl 300 L) has been studied. As non-ionic surfactants, alkyl polyglycosides (Glucopon® 215, Glucopon® 600 and Glucopon® 650) were studied, as were fatty alcohol...

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Autores principales:	Bravo Rodríguez,Vicente, Jurado Alameda,Encarnación, Martínez Gallegos,Juan Francisco, Reyes Requena,Antonia, García López,Ana Isabel, Sampaio Cabral,Joaquim Manuel, Fernandes,Pedro, Pina da Fonseca,Luis Joaquim
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2006
Materias:	alpha-amylase alkyl polyglycosides enzymatic activity fatty alcohol ethoxylates linear alkyl benzene sulfonate nonyl phenol ethoxylate
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500012
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id	oai:scielo:S0717-34582006000500012
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spelling	oai:scielo:S0717-345820060005000122007-01-04Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactantsBravo Rodríguez,VicenteJurado Alameda,EncarnaciónMartínez Gallegos,Juan FranciscoReyes Requena,AntoniaGarcía López,Ana IsabelSampaio Cabral,Joaquim ManuelFernandes,PedroPina da Fonseca,Luis Joaquim alpha-amylase alkyl polyglycosides enzymatic activity fatty alcohol ethoxylates linear alkyl benzene sulfonate nonyl phenol ethoxylate The influence of different commercial surfactants on the enzymatic activity of a commercial alpha-amylase from Bacillus licheniformis (Termamyl 300 L) has been studied. As non-ionic surfactants, alkyl polyglycosides (Glucopon® 215, Glucopon® 600 and Glucopon® 650) were studied, as were fatty alcohol ethoxylates (Findet 1214N/23 and Findet 10/15), and nonyl phenol ethoxylate (Findet 9Q/21.5NF). Also, an anionic surfactant, linear alkyl benzene sulfonate (LAS) was assayed. In general, none of the non-ionic surfactants studied, except Findet 10/15, vary substantially the enzymatic activity. Findet 10/15 has the strongest hydrophobic character and reduces the enzymatic activity more significantly the greater its concentration. Regarding LAS, this surfactant significantly depressed enzymatic activity, presumably due to the electrostatic interactions caused by its anionic character.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.9 n.5 20062006-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500012en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	alpha-amylase alkyl polyglycosides enzymatic activity fatty alcohol ethoxylates linear alkyl benzene sulfonate nonyl phenol ethoxylate
spellingShingle	alpha-amylase alkyl polyglycosides enzymatic activity fatty alcohol ethoxylates linear alkyl benzene sulfonate nonyl phenol ethoxylate Bravo Rodríguez,Vicente Jurado Alameda,Encarnación Martínez Gallegos,Juan Francisco Reyes Requena,Antonia García López,Ana Isabel Sampaio Cabral,Joaquim Manuel Fernandes,Pedro Pina da Fonseca,Luis Joaquim Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
description	The influence of different commercial surfactants on the enzymatic activity of a commercial alpha-amylase from Bacillus licheniformis (Termamyl 300 L) has been studied. As non-ionic surfactants, alkyl polyglycosides (Glucopon® 215, Glucopon® 600 and Glucopon® 650) were studied, as were fatty alcohol ethoxylates (Findet 1214N/23 and Findet 10/15), and nonyl phenol ethoxylate (Findet 9Q/21.5NF). Also, an anionic surfactant, linear alkyl benzene sulfonate (LAS) was assayed. In general, none of the non-ionic surfactants studied, except Findet 10/15, vary substantially the enzymatic activity. Findet 10/15 has the strongest hydrophobic character and reduces the enzymatic activity more significantly the greater its concentration. Regarding LAS, this surfactant significantly depressed enzymatic activity, presumably due to the electrostatic interactions caused by its anionic character.
author	Bravo Rodríguez,Vicente Jurado Alameda,Encarnación Martínez Gallegos,Juan Francisco Reyes Requena,Antonia García López,Ana Isabel Sampaio Cabral,Joaquim Manuel Fernandes,Pedro Pina da Fonseca,Luis Joaquim
author_facet	Bravo Rodríguez,Vicente Jurado Alameda,Encarnación Martínez Gallegos,Juan Francisco Reyes Requena,Antonia García López,Ana Isabel Sampaio Cabral,Joaquim Manuel Fernandes,Pedro Pina da Fonseca,Luis Joaquim
author_sort	Bravo Rodríguez,Vicente
title	Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
title_short	Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
title_full	Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
title_fullStr	Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
title_full_unstemmed	Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants
title_sort	modification of the activity of an alpha-amylase from bacillus licheniformis by several surfactants
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000500012
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Modification of the activity of an alpha-amylase from Bacillus licheniformis by several surfactants

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