CONCLUSION AND RECOMMENDATIONS
 Table 3. Comparison of simulated and experimental results from an optimization.4
|
Simulations can be used to identify critical process parameters and support process design and development by making a true
optimization with regard to pressure drop, flow rate, gradients, salt, pH, temperature, throughput, yield, purity, and robustness.
Applying these modeling tools in the development of chromatographic separations can support the design of effective and efficient
manufacturing processes that will consistently ensure a predefined quality at the end of the manufacturing process, consistent
with the basic tenet of Quality by Design.
REFERENCES:
1. McCue JT, Engel P, Ng A, Macniven R, Thömmes J. Modeling of protein monomer/aggregate purification and separation using
hydrophobic interaction chromatography. Bioprocess Biosystems Eng. 2008;31:261–275.
2. Kaltenbrunner O, Giaverini O, Woehle D, Asenjo JA. Application of chromatographic theory for process characterization
towards validation of an ion-exchange operation, Biotechnol Bioeng. 2007;98:201–210.
3. Mollerup JM, Hansen TB, Kidal S, Staby A. Quality by Design—Thermodynamic modelling of chromatographic separations of
proteins. J Chromatogr A. 2008;1177:200–206.
4. Mollerup JM, Hansen TB, Kidal S, Sejergaard L, Staby A. Development, modeling, optimization and scale-up of chromatographic
purification of a therapeutic protein. Fluid Phase Liquid Equilib. 2007;261:133–139.
5. Rathore AS, Sharma A, Chilin D. Applying process analytical technology to biotech unit operations. BioPharm Int. 2006;8:48–57.
6. Seely RJ, Haury J. Applications of failure modes and effects analysis to biotechnology manufacturing processes. In: Rathore
AS, Sofer G, editors. Process validation in manufacturing of biopharmaceuticals. Boca Raton: Taylor & Francis; 2005. p. 13–30.
7. Seely, J. Process characterization. Process validation in manufacturing of biopharmaceuticals. Boca Raton: Taylor & Francis;
2005. p. 31–68.
8. Weaver LE, Carta G. Protein adsorption on cation exchangers: comparison of macroporous and gel composite media. Biotechnol
Prog. 1996;12:342.
9. Langmuir I. The adsorption of gases on plain surfaces of glass, mica, and platinum. J Am Chem Soc. 1918;40:1361.
10. Brooks CA, Cramer SM. Steric mass-action ion exchange: displacement profiles and induced salt gradients. AIChE Journal.
1992;32:1969.
11. McCue JT, Kemp G, Low D, Quiñones-Garcia. Evaluation of protein-A chromatography media. J. Chromatogr. A. 2003;989:139.
12. Lewus, RK, Carta G, Binary protein adsorption on gel-composite ion-exchange media. AIChE Journal. 1999;45:512.
13. Yamamoto S, Nakanishi K, Matsuno R. Ion-exchange chromatography of proteins. In: J. Cazes, editor. Chromatographic Science
Series. New York: Marcel Dekker; 1988. vol. 43.
14. Watler P, Yamamoto S, Kaltenbrunner O, Feng D. Engineering aspects of ion-exchange chromatography. In: Rathore AS, Velayudhan
A, editors. Scale-up and optimization on preparative chromatography. New York: Marcel Dekker, Inc.; 2003.
Oliver Kaltenbrunner is a principal scientist at Amgen, Inc., Thousand Oaks, CA. Justin McCue is a senior engineer and Philip Engel is a scientist of process development at Biogen Idec Corporation, Cambridge, MA. Jorgen M. Mollerup teaches at Department of Chemical and Biochemical Engineering, Technical University of Denmark, Lyngby, Denmark. Anurag S. Rathore, PhD, is a director of process development at Amgen, Inc., Thousand Oaks, CA, 805.447.4491, arathore@amgen.com He is also a member of BioPharm International's Editorial Advisory Board.
|