An improved method that uses a single alkaline Al2O3 chromatography step wa
s developed both for separating Taxol from the extracts of Taxus cuspidate
callus cultures, and meanwhile converting other taxanes to Taxol catalyzed
by the Al2O3 adsorbent. Under the optimized operating conditions, a Taxol r
ecovery of 170% was obtained. The final Taxol content was 29% starting from
less than 1% in the initial extracts.