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Many scientific methods of analysis have been developed for the investigation of the constituents and biological activities of medicinal plants during the 50 years since the inaugural meeting of the Gesellschaft für Arzneipflanzenforschung (GA). The chromatographic (e. g., TLC, GLC, HPLC), spectroscopic (e. g., UV, IR, 1H- and 13C-NMR, MS), and biological (e. g., anticancer, anti-inflammatory, immunostimulant, antiprotozoal, CNS) techniques utilized for medicinal plant research are briefly reviewed. The contribution that advances in scientific methodology have made to our understanding of the actions of some herbal medicines (e. g., Echinacea, Ginkgo, St John's wort, Cannabis), as well as to ethnopharmacology and biotechnology, are briefly summarized. Plants have provided many medicinal drugs in the past and remain as a potential source of novel therapeutic agents. Despite all of the powerful analytical techniques available, the majority of plant species has not been investigated chemically or biologically in any great detail and even well known medicinal plants require further clinical study.

50 Years of Medicinal Plant Research - Every Progress in Methodology is a Progress in Science