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Phycocyanin (PC) is a water-soluble pigment and photosynthetic assistant protein typically isolated from a diverse group of bacteria belonging to the genera cyanobacteria with the common name blue-green algae.
Cyanobacteria derive their energy from the sun via photosynthesis and are very resilient its species can grow in saltwater, fresh water, and extreme environments.
Marine cyanobacterium prochlorococcus produce much of the world's oxygen. Sweetwater cyanobacterium Arthrospira platensis is the source of spirulina, a therapeutic nutraceutical or dietary supplement. In contrast, other cyanobacteria produce toxins that pollute natural waters (e.g., cyanotoxins).
According to the FDA, phycocyanin is non-toxic and safe to consume. It is classified as GRAS, “globally recognized as safe,” and is commonly used as a food and coloring additive.
Phycocyanin, phycobiliproteins, cyanobacteria, spirulina
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