Evolution and Key Control Points of Industrial Cell Culture Technology in Drug Production

From initial roller bottles to today's tens of thousands of liters bioreactors, Industrial Cell Culture Technology has become the cornerstone of the modern biopharmaceutical industry.

Evolution of Technology: From Batch to Continuous

1. Batch: The most basic mode, with limited yield due to accumulation of metabolic waste.
2. Fed-batch: The most mainstream mode currently, significantly improving antibody expression.
3. Perfusion: Represents the future direction, maintaining cells in a high-density active state for a long time.

Three Key Control Points of Industrial Cell Culture

To achieve efficient production at commercial scale, the following three dimensions must be strictly monitored:

1. Raw Material Quality

The purity and batch-to-batch stability of amino acids, vitamins, and trace elements in the medium directly determine the cell growth curve.

2. Precise Control of Physical and Chemical Environment

Bioreactor pH, dissolved oxygen (DO), temperature, and shear stress must achieve closed-loop automatic control.

3. Sterility and Microbial Control

Using microbe-controlled grade culture media raw materials is the most fundamental guarantee to prevent contamination.