Assessment of Membrane-Based Downstream Purification Processes as a Replacement to Traditional Resin Bead for Monoclonal Antibody Purification
Assessment of Membrane-Based Downstream Purification Processes as a Replacement to Traditional Resin Bead for Monoclonal Antibody Purification In this study, ion exchange and protein A membrane chromatography performances were assessed and compared with their resin counterparts. Protein A dynamic binding capacities were higher than 50 g/L for two of the tested membranes and with a residence time of 0.2 min. For polishing, it was observed that aggregate clearance was generally less performant with membrane separation when compared to resins with similar ligands. However, the comparable yield and increased productivity of membranes could be enough to consider their implementation. In addition, lifetime studies demonstrated that the performance of membranes remained robust over cycles. One hundred cycles were reached for most of the tested membranes with no impact on the process performance nor product quality. https://lnkd.in/gyjmMNVd #aspenalert #biotech #bioprocess