METHOD FOR PRODUCING OF PROTEIN PREPARATION FROM CYANOBACTERIA Russian patent published in 2008 - IPC A23J3/20 A23J3/32 C12N1/12 C09B61/00 

FIELD: food-processing and microbiological industry, in particular, processes for extracting of biological preparations from cyanobacteria, may be used for enrichment of food products and producing of biologically active substances.

SUBSTANCE: method involves providing aqueous extraction and flotation precipitation using ammonium sulfate having saturation concentration of 20-70%; upon termination of each stage, providing centrifuging and separation of protein sediment; processing the latter on diethylaminoethyl activated carrier using ion-exchange chromatography method, followed by processing on membrane installation until saline content is below 5%; drying ready product to moisture content below 3%; using dry spirulina biomass enriched with selenium, chromium and other essential microelements. Method allows protein product with increased purity extent to be obtained, said product being characterized by containing phycocyanin and essential microelements and being used as source of these microelements and/or as food colorant which may be produced in commercial scale.

EFFECT: simplified method, reduced expenses for obtaining of ready product, and provision for producing of high-purity phycocyanin preparation.

5 cl, 2 dwg, 6 tbl, 3 ex