High cell density fed-batch culturesperformed in pre-industrial 14 L bioreactors using glycerol as thecarbon source demonstrated the ability of GALG20 to producepDNA amounts of the order of 2200 mg/L.
Ultimately, GALG20 isthe first pgi mutant strain reported for the purpose of producing plasmid biopharmaceuticals.
Additional discoveries associatedwith pgi mutant strains can potentially emerge to contribute tofurther development of plasmids production.