PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Algal pigment extract. Flask of a purple extract that was obtained from the Spirulina blue-green alga (cyanobacterium). Spirulina extracts are being studied for medical and health uses, which include protein and energy drinks, skin gels and also anti-cancer properties. Photographed at the French research company Alpha-Biotech, France.
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