Plasmids are one of the cornerstones of modern biology, providing the foundation for several areas of important research including DNA vaccines, mRNA vaccines, viral vectors, and monoclonal antibodies. This small, circular DNA is found in bacterial cells and is used widely as a vector for specific DNA fragments across multiple fields, including molecular biology, biochemistry, biotechnology, and cell biology. Plasmid purification, therefore, has a wide range of applications and its importance is reflected in recent scientific triumphs including the development of COVID-19 vaccines and advancements in gene and cell therapies.
One of the biggest challenges with automated plasmid purification is with culture growth conditions, leading to low yielding cultures. Many times, culture growth is unpredictable and hard to perfect. Large volume culture growth is an additional struggle. But it’s important to optimize your culture growth, because when your culture growth conditions are reliable, your downstream processing will be more successful and higher yielding. Here are a couple recommendations for successful large scale culture growth.