A novel vortex flow reactor for the purification of B-phycoerythrin from Porphyridium cruentum

The purification of B-phycoerythrin from a concentrated extract of disrupted Porphyridium cruentum cells was carried out using a new vortex flow reactor design for protein purification. The reactor behaved as an expanded bed in the laminar vortices flow regime where the Streamline DEAE resin was expanded by the axial flow and stabilized by the vortex flow. After the broth culture was centrifuged and resuspended in the adsorption buffer, the concentrated extract of disrupted cells was directly loaded into the vortex flow reactor. The purification of B-phycoerythrin was carried out in two steps: adsorption in the expanded bed and elution from the settled bed. 142.0 mg of B-phycoerythrin was eluted representing a total recovery yield of 86.6%. Prior to B-phycoerythrin purification, the protein adsorption of the vortex flow reactor was characterized through hydrodynamic studies and a dynamic capacity measurement using a standard protein.

Proceso para la obtención y purificación de B-Ficoeritrina

Proceso en tres etapas para la obtención y purificación de la proteína B-ficoeritrina procedente de la microalga Porphyridium cruentum caracterizado por su alto rendimiento. La primera etapa consiste en una ruptura celular encaminada a liberar el material citoplasmático mediante un proceso de choque osmótico usando un tapón de ácido acético/acetato sódico. La segunda etapa utiliza un proceso cromatográfico en lecho expandido desarrollado en un columna de absorción rellena con un soporte absorbente iónico denominado Streamline-DEAE. Por último, la tercera etapa es un proceso adicional cromatográfico en columna de intercambio iónico de tipo clásico que utiliza como fase estacionaria un lecho de DEAE-celulosa DE-52.