From the discovery of corycepin to the present, the purification methods have been based on column chromatography. Ion exchange chromatography using Dowex-I (Cl), Dowex-50 (NH4 þ) or Sephadex LH20 has been reported (6e8).
From thediscovery of corycepin to the present, the purification methodshave been based on column chromatography. Ion exchange chromatography using Dowex-I (Cl), Dowex-50 (NH4 þ) or SephadexLH20 has been reported (6e8).