High Pressure Homogenization for Inclusion Body Isolation.

Area of Science:

• Biotechnology
• Protein Chemistry
• Bioprocess Engineering

Background:

• High pressure homogenization (HPH) is vital for releasing intracellular recombinant proteins from Escherichia coli.
• Misfolded proteins in E. coli often require specific solubilization and refolding protocols.
• HPH critically influences inclusion body (IB) quality, impacting downstream refolding efficiency.

Purpose of the Study:

• To present an optimized protocol for homogenization and inclusion body washing.
• To introduce analytical methods for evaluating HPH unit operations.
• To identify suitable HPH conditions using a multivariate approach for improved refolding yields.

Main Methods:

• Development of a protocol for homogenization and IB washing.
• Application of a multivariate approach to determine optimal HPH conditions.
• Integration of analytical methods to assess unit operations.

Main Results:

• Established a protocol for homogenization and IB washing.
• Identified key parameters influencing IB quality during HPH.
• Demonstrated the scalability of the described workflow.

Conclusions:

• Optimizing HPH is crucial for enhancing recombinant protein refolding yields from E. coli inclusion bodies.
• The presented protocol and analytical methods provide a framework for improving HPH efficiency.
• The workflow is scalable and adaptable for existing HPH processes.