method for purifying at least one saponin in a solution, purified qs-21 saponin product component, and, immunogenic composition

摘要

1/1 summary "method for purifying at least one saponin in a solution, purified saponin qs-21 product component, and, immunogenic composition" The present invention provides methods to purify at least one saponin in a solution comprising the steps of: (a) using at least one saponin in a first solvent comprising a solubilising component; (b) replacing at least a portion of the solubilizing component with an exchange solvent, thereby producing a substituted solvent; and (c) removing the substituted solvent to produce a dried saponin product comprising at least one saponin.