Process for production 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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Bibliographic Details
Main Authors CHRISTOPHER D. V BLACK, HALLDIS HELLEBUST, HENRY RAPHAEL WOLFE, HARRY STORFLOR, GEIR O. STOKKE, ROSAMINA MERCHANT, FAHAR MERCHANT
Format Patent
LanguageEnglish
Published 14.09.2000
Edition7
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Summary: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.
Bibliography:Application Number: AU20000028146