Protein loss during membrane processes in biopharmaceutical manufacturing

Jiwon Na, Ali Behboudi, Jiwon Mun, Hoeun Jin, Andrew L. Zydney, Youngbin Baek

Research output: Contribution to journalArticlepeer-review


Maximizing product yield in biopharmaceutical manufacturing processes is a critical factor in determining the overall cost of goods, especially given the high value of these biological products. However, there has been relatively limited research on the quantitative analysis of protein losses due to adsorption and fouling during the different membrane filtration processes employed in typical downstream operations. This study aims to provide a comprehensive analysis of protein loss in the range of membrane systems used in downstream processing including clarification, virus removal filtration, ultrafiltration/diafiltration for formulation, and final sterile filtration, all using commercially available membranes with three model proteins (bovine serum albumin, human serum albumin, and immunoglobulin G). The correlation between protein loss and various parameters (i.e., protein type, protein concentration, throughput, membrane morphology, and protein removal mechanism) was also investigated. This study provides important insights into the nature of protein loss during membrane processes as well as a methodology for quantifying protein yield loss in bioprocesses.

Original languageEnglish (US)
Article number2400154
JournalBiotechnology Journal
Issue number5
StatePublished - May 2024

All Science Journal Classification (ASJC) codes

  • Applied Microbiology and Biotechnology
  • Molecular Medicine

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