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TU Berlin

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Antiviral Substances and Pigments
TU Berlin, OTH Amberg-Weiden
1.10.2020 bis 30.09.2023
Project volume: 
€ 601.590 (BMEL via FNR) 
The project pursues the overriding goal of developing a decentrally realizable and economically viable value chain for Arthrospira platensis and testing it in a relevant operational environment. The proposed value chain includes the extraction of exopolysaccharides (EPS) with antiviral effects for use in freshwater fish farming as the primary product. In the course of earlier work by the future project manager, a method for obtaining EPS from A. platensis was developed and its effectiveness against the highly infectious Koi Herpes Virus (KHV) and its economic viability were demonstrated.
As a second valuable product, an aqueous extract is to be obtained which contains the valuable substance phycocyanin. The use of Pulsed Electric Fields (PEF) technology for its extraction is a new type of process and promises energetic and process-related advantages compared to the established mechanical cell disruption processes, since here the extraction of valuable substances can take place while largely preserving the cell morphology and the product separation is facilitated. A special feature of the project is the coupling of the value chain to a biogas plant to use the waste heat generated there. In addition, there is the possibility of returning the carbon-rich cell debris to the biogas plant for energetic recovery after the recovery of valuable substances.
The proposed project expands the established production of phycocyanin from A. platensis by the production of a further valuable product in a new downstream process (improved economic efficiency) as well as through the coupling to a biogas plant by the improved use of nutrients and thermal energy (improved ecological balance).

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