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An extracellular exoinulinase was purified from the crude extract of Aspergillus fumigatus by ammonium sulfate precipitation, followed by successive chromatographies on DEAE-Sephacel, Sephacryl S-200, concanavalin A-linked amino-activated silica, and Sepharose 6B columns. The enzyme was purified 25-fold, and the specific activity of the purified enzyme was 171 IU/mg of protein. Gel filtration chromatography...
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