RESEARCHERS DISCOVER PROMISING NEW NATURAL SUBSTANCES IN THE RAINFOREST

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RESEARCHERS DISCOVER PROMISING NEW NATURAL SUBSTANCES IN THE RAINFOREST
23 February 2003 - Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

One present-day form of colonialism works like this: A company sends researchers into the rainforest to discover promising new natural substances. Once found, the company registers a patent or trademark and begins to cash-in.

Even more effective is the latest variant: Instead of using the plant itself, the relevant gene is isolated and transplanted in a single-cell organism such as yeast or bacteria, allowing the substance to be reproduced in a fermenter located in the motherland. The disadvantage to this approach is well known: The exploited overseas country is left empty-handed.

The West African nation of Ghana is showing how to counter this. In April 2001, the Oda-Kotoamso Community Agroforestry Project was initiated with the aim of promoting the sustainable cultivation of heavily deforested areas, preserving plant species diversity and generating new income sources for the indigenous population. Engaged in the project are the timber company Samartex, landowners, farm tenants and government officials. The German Development Service (Deutscher Entwicklungsdienst DED) is assisting with technical issues. A useful plant that can easily be cultivated under plantation trees is the katemfe bush, a plant native to the African rainforest. That thaumatin, one of the strongest known natural sweeteners, can be extracted from the katemfe berry is not a new discovery. The U.S. FDA long ago classified thaumatin as "generally recognized as safe" and the EU approved its use in chewing gum, desserts and soups under E 957. The low-calorie sweet protein is already being marketed and attempts to produce it by genetic engineering are underway. To ensure that the former colony doesn't miss out, a production facility to exploit this natural resource is currently being set up in Ghana. Financial aid is being provided by the Deutsche Investitions- und Entwicklungsgesellschaft mbH.

"We deliberately kept the entire process simple, from processing the berries to the finished powder product," emphasizes Dr. Wolfgang Krischke of the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart. "We designed and combined the individual steps such that the specialists in Ghana, who we train in Germany, can service and repair the plant on their own as much as possible." Samartex is currently analyzing the German market and is already establishing contacts with potential customers. A Hohenheim University working group is looking into ways of maximizing crop revenues.

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About: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
The Fraunhofer-Gesellschaft undertakes applied research of direct utility to private and public enterprise and of wide benefit to society. Its services are solicited by customers and contractual partners in industry, the service sector and public administration. The Fraunhofer-Gesellschaft maintains over 80 research units at more than 40 different locations throughout Germany. A staff of some 12,700, predominantly qualified scientists and engineers, works with an annual research budget of over one billion euros. Of this sum, more than € 900 million is generated through contract research. Two thirds of the Fraunhofer-Gesellschaft’s contract research revenue is derived from contracts with industry and from publicly financed research projects. The remaining one third is contributed by the German federal and Länder governments, as a means of enabling the institutes to pursue more fundamental research in areas that are likely to become relevant to industry and society in five or ten years’ time.

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