METHODS OF ADJUSTING THE PH OF A CELL CULTURE MEDIUM

Methods for adjusting the pH of a cell culture medium, methods for culturing cells in a pH-adjusted cell culture medium, and methods for making a polypeptide expressed by cells cultured in a pH-adjusted cell culture medium are described. Also described are systems for determining how much acid or ba...

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Bibliographische Detailangaben
Hauptverfasser:	DUONG, Tam, BALCARCEL, R. Robert
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	Methods for adjusting the pH of a cell culture medium, methods for culturing cells in a pH-adjusted cell culture medium, and methods for making a polypeptide expressed by cells cultured in a pH-adjusted cell culture medium are described. Also described are systems for determining how much acid or base should be added to a cell culture medium to obtain a desired pH. The methods include a charge balance model that includes parameters for a functional relationship between a concentration of dissolved carbon dioxide in the cell culture medium, a mole fraction of gaseous carbon dioxide applied to the cell culture medium, a concentration of net medium acids in the cell culture medium, and the desired medium pH.