| Revista: | Brazilian journal of chemical engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000308992 |
| ISSN: | 0104-6632 |
| Autores: | Conrado, L.S1 Veredas, V2 Nobrega, E.S Santana, C.C |
| Instituciones: | 1Universidade Federal de Campina Grande, Departamento de Engenharia Quimica, Campina Grande, Paraiba. Brasil 2Universidade Estadual de Campinas, Faculdade de Engenharia Quimica, Campinas, Sao Paulo. Brasil |
| Año: | 2005 |
| Periodo: | Ene |
| Volumen: | 22 |
| Número: | 4 |
| Paginación: | 501-509 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The design of novel applications for the use of new high-density adsorbents in the direct recovery of proteins requires analysis of the fluid dynamics and mass transfer characteristics of the column used with the solid-liquid system. In this article we describe the operating parameters related to the use of a high-density, hydrophobic resin (Streamline® Phenyl) for the recovery of alpha-lactalbumin from cow milk whey in an expanded-bed adsorption mode of operation. The adsorption isotherm, kinetic curves and chromatographic curves for adsorption and elution were determined for alpha-lactalbumin recovered from whole whey. The experiments were used to confirm the theoretical model that involves the combination of resistance to the mass transfer in the liquid phase and diffusivity in the adsorbent resin pores. The model solution was obtained through the orthogonal collocation method. A nonlinear multivariable optimization method was used to fit the model to experimental results. A purity of 79% was obtained with the adsorption/elution protocol prior to any polishing procedure |
| Disciplinas: | Química |
| Palabras clave: | Ingeniería química, Dinámica de fluidos, Suero de leche, Adsorbentes de alta densidad, Resinas hidrofóbicas, Recuperación de proteínas, Alfa-lactoalbúmina |
| Keyword: | Chemistry, Chemical engineering, Fluid dynamics, Milk whey, High density adsorbents, Hydrophobic resins, Protein recovery, Alpha-lactalbumin |
| Texto completo: | Texto completo (Ver HTML) |
