Analysis of Extracting Taxol from Different Parts of Planted Yew

The extraction and purification technnologies of taxol from planted yew leaves,roots and branches are studied,and two extraction methods of ultrasonic heating and refluxing back are compared.After solid-phase extraction and liquid-liquid extraction,precipitation of hexane,silica-gel chromatography purification of paclitaxel,ultraviolet detection is used to detect the content in the leaves, roots and baranches.They are 13.89 μg/g,12.67 μg/g,39.33 μg/g;the purities are 83%,81.7%,90%,respectively.It indicates that taxus branch is the best raw material for extracting taxol and the refluxing extraction method is better.