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dc.contributor.author
Rodriguez Durán, Luis V.
dc.contributor.author
Spelzini, Darío
dc.contributor.author
Boeris, Valeria
dc.contributor.author
Aguilar, Cristóbal N.
dc.contributor.author
Picó, Guillermo Alfredo
dc.date.available
2017-07-26T22:26:59Z
dc.date.issued
2012-07
dc.identifier.citation
Rodriguez Durán, Luis V.; Spelzini, Darío; Boeris, Valeria; Aguilar, Cristóbal N.; Picó, Guillermo Alfredo; Interaction of tannase from Aspergillus niger with polycations applied to its primary recovery; Elsevier Science; Colloids and Surfaces B: Biointerfaces; 101; 7-2012; 392-397
dc.identifier.issn
0927-7765
dc.identifier.uri
http://hdl.handle.net/11336/21421
dc.description.abstract
Tannase from Aspergillus niger was partitioned in aqueous two-phase systems composed by polyethyleneglycol of molar mass 400, 600 and 1000 and potassium phosphate. Tannase was found to be partitioned toward the salt-rich phase in all systems, with partition coefficients lower than 0.5. Partition coefficients values and low entropic and enthalpic changes associated with tannase partition suggest that the entropic effect may be the driving force of the concentration of the enzyme in the bottom phase due to the high molar mass of the enzyme. The process was significantly influenced by the top phase/bottom phase volume ratio. When the fungal culture broth was partitioned in these systems, a good performance was found, since the enzyme recovery in the bottom phase of the system composed by polyethyleneglycol 1000 was around 96% with a 7.0-fold increase in purity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Tannasse
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Aquous Two Phases
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Bioseparation
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Bioprocesamiento Tecnológico, Biocatálisis, Fermentación
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Biotecnología Industrial
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Interaction of tannase from Aspergillus niger with polycations applied to its primary recovery
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-26T17:20:08Z
dc.journal.volume
101
dc.journal.pagination
392-397
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodriguez Durán, Luis V.. Universidad Autónoma de Coahuila; México
dc.description.fil
Fil: Spelzini, Darío. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Boeris, Valeria. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Aguilar, Cristóbal N.. Universidad Autónoma de Coahuila; México
dc.description.fil
Fil: Picó, Guillermo Alfredo. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Colloids and Surfaces B: Biointerfaces
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.colsurfb.2012.07.023
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0927776512004171
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