A new process for recovering high purity natamycin from fermentation broth
containing natamycin comprises the steps of adjusting the pH of the broth
to above about 10 and adding an amount of a water-miscible solvent, such
as isopropanol, sufficient to dissolve the natamycin in the broth,
followed by removing insoluble solids from the pH-adjusted broth, followed
by lowering the pH of the broth to a level sufficient to precipitate the
natamycin, and removing the natamycin from the broth.