Improving The Chromatographic Purification Protocol For Recombinant Hirudin Produced By Hansenula polymorpha | ||||
| Egyptian Journal of Botany | ||||
| Article 1, Volume 65, Issue 1, January 2025, Page 1-11 PDF (1.85 MB) | ||||
| Document Type: Regular Issue (Review) | ||||
| DOI: 10.21608/ejbo.2024.288599.2842 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Khaled Ewies  1; Jan Rohde2; Ahmed ibrahim Abdel-Maksoud 3; Ashraf Farag El Baz4
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| 110th of Rhein-Minapharm Biogenetics for biopharmaceutical production (RM-BG), 44916, Egypt | ||||
| 2Senior Director Biotechnology at Minapharm Pharmaceuticals, 44916, Egypt | ||||
| 3Industrial Biotechnology Departement, Genetic Engineering and Biotechnology Research Institute, Sadat University, Egypt | ||||
| 4Department of Industrial Biotechnology, Genetic Engineering and Biotechnology Research Institute, Sadat University, Egypt. | ||||
| Abstract | ||||
| In this study, a factory-integrated recombinant Hirudin downstream process of successive chromatographic purification steps was modified to improve their overall yield. The effect of different ion exchange chromatographic resins for protein capture and altering process conditions was investigated against the yield of the process. The obtained results showed that tuning the pH of the protein solution while keeping the same conventional chromatographic matrix could improve the capture step yield by 5.7% compared to the conventional yield. Further, the particle sizes and internal surface structures of the chromatographic matrices had a significant impact on the yield of the intermediate and polishing downstream steps by 21.2% and 24% respectively. Accordingly, these minor modifications significantly impacted the yield of the production process by a 58% increase compared to the conventional process without affecting any of the critical quality attributes of the product. This change has a significant economic impact, saving 35% of the production cost. | ||||
| Keywords | ||||
| Chromatography; Fermentation; Improvement; Ion Exchange; Reversed phase | ||||
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