PROCESS FOR PRODUCTION OF DIPHTHERIA TOXIN

The present invention provides a method of purifying diphtheria toxin comprising (1) fermenting a microorganism strain capable of producing diphtheria toxin using glucose as a carbon source, said method comprising adding glucose to a growing culture whereby the addition of glucose maintains microorg...

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Bibliographische Detailangaben
Hauptverfasser: HELLEBUST, HALLDIS, BLACK, CHRISTOPHER, D., V, MERCHANT, ROSAMINA, STORFLOR, HARRY, WOLFE, HENRY, RAPHAEL, MERCHANT, FAHAR, STOKKE, GEIR, O
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides a method of purifying diphtheria toxin comprising (1) fermenting a microorganism strain capable of producing diphtheria toxin using glucose as a carbon source, said method comprising adding glucose to a growing culture whereby the addition of glucose maintains microorganism growth effective to support diphtheria toxin production; and (2) purifying the diphtheria toxin from the culture by contacting a toxin containing preparation derived therefrom with an ion exchange matrix, eluting a fraction containing the toxin, applying the eluate to a hydrophobic matrix, and eluting a fraction containing the toxin.