Supercritical carbon dioxide fluid extraction of colchicine from the
bulbs of lily was studied and the extraction technological conditions were
optimized by vertical-method. The contents of colchicine in extracts were
determined directly by high performance liquid chromatography (HPLC).
The result showed that at 40, ISMPa and with ethanol as pre-soaker,
the extraction efficiency is the highest after lily powder was alkalified by
ammonia liquor. Und...