Abstract
More than 85% of higher plants have not been adequately surveyed for potentially useful biological activity and the plant kingdom has not received sufficient attention as a resource of possible medicinal agents. At the same time, it has been estimated that over half of the world’s 25 best selling pharmaceuticals for 1991 owed their origin to a natural source material (O’Neill and Lewis, 1993). Another statistic is that approximately 120 plant-derived chemical compounds are currently used as drugs. Many of these are extracted and purified directly from plants (Farnsworth et al, 1985). A recent success story is the market for Ginkgo biloba, (Ginkgoaceae) extracts in disorders of peripheral blood circulation and geriatry. Annual sales in Europe are estimated at US $ 500 million (Sticher 1993).
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Marston, A., Hostettmann, K. (1999). Biological and Chemical Evaluation of Plant Extracts and Subsequent Isolation Strategy. In: Bohlin, L., Bruhn, J.G. (eds) Bioassay Methods in Natural Product Research and Drug Development. Proceedings of the Phytochemical Society of Europe, vol 43. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4810-8_6
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DOI: https://doi.org/10.1007/978-94-011-4810-8_6
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