Artículo
Precipitation with poly acrylic acid as a trypsin bioseparation strategy
Porfiri, María Cecilia
; Braia, Mauricio Javier
; Farruggia, Beatriz Monica
; Picó, Guillermo Alfredo
; Romanini, Diana
Fecha de publicación:
09/2009
Editorial:
Elsevier
Revista:
Process Biochemistry
ISSN:
0032-9592
e-ISSN:
1359-5113
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Precipitation of enzymes with reversible soluble-insoluble polymers is a simple approach which can be easily scaled up. This work reports investigations aiming at verifying the existence of specific interactions and complex formation between porcine trypsin and poly acrylic acids using spectroscopy techniques. The trypsin-polymer complex was insoluble at pH lower than 5, with a stoichiometric ratio polymer mol per protein mol of 1:148. It took only a minute for the insoluble complex to form and it was redissolved modifying the pH of the medium. The enzymatic activity of trypsin was maintained even in the presence of the polymer and after precipitation poly acrylic acid presence protect the enzyme from itself degradation. The conditions of complex formation were studied using pure proteins that could be applied on porcine pancreas homogenates as an isolation strategy of trypsin.
Palabras clave:
BIOSEPARATION
,
POLY ACRYLIC ACID
,
POLYELECTROLYTE
,
POLYMER
,
PRECIPITATION
,
TRYPSIN
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - ROSARIO)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - ROSARIO
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - ROSARIO
Citación
Porfiri, María Cecilia; Braia, Mauricio Javier; Farruggia, Beatriz Monica; Picó, Guillermo Alfredo; Romanini, Diana; Precipitation with poly acrylic acid as a trypsin bioseparation strategy; Elsevier; Process Biochemistry; 44; 9; 9-2009; 1046-1049
Compartir
Altmétricas