The affinity technology in downstream processing

Area of Science:

• Biochemistry
• Separation Science
• Biotechnology

Background:

• Stringent quality criteria for biochemicals necessitate advanced purification technologies.
• Affinity-based purification is a premier method, offering diverse approaches with varying performance characteristics.

Purpose of the Study:

• To provide a comprehensive overview of affinity-based purification technologies.
• To compare chromatographic and non-chromatographic methods for biochemical purification.

Main Methods:

• Review of classical and advanced affinity chromatography techniques.
• Exploration of non-chromatographic affinity technologies designed for high throughput.
• Discussion of diverse affinity ligands and support materials used in purification.

Main Results:

• Affinity chromatography offers various specialized techniques (e.g., perfusion, hyperdiffusion, high-performance).
• Non-chromatographic methods (e.g., recycle extraction, aqueous partitioning, membrane filtration) address diffusion limitations.
• A wide array of affinity ligands and support materials are available for tailored purification strategies.

Conclusions:

• Affinity purification technologies are critical for meeting stringent biochemical quality standards.
• Both chromatographic and non-chromatographic methods offer distinct advantages for biochemical separation.
• The selection of appropriate ligands and supports is key to optimizing purification efficiency.