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The needles of several yew species and cultivars were analysed by high-pressure liquid chromatography for paclitaxel, 10-deacetylpaclitaxel, cephalomannine, baccatin III, 10-deacetylbaccatin III and brevifoliol. About 750 samples were collected from five different locations in the Netherlands and the UK. The results of this screening show a large variation in taxane content between the different species...
A chemotaxonomical study of the genus Taxus was undertaken, based on the concentration of six neutral taxanes in its needles. A total of 750 different samples from 10 different Taxus species or hybrids were analysed. The chemical data were processed by Cluster and Principal Component Analysis. The results of the chemical analyses allowed the distinction of a North American and a Eurasian group of...
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