biostudies-literatureUnknown16(11)Citi V<i>Arthrospira platensis</i>, commonly known as <i>Spirulina</i>, is a photosynthetic filamentous cyanobacterium (blue-green microalga) that has been utilized as a food source since ancient times. More recently, it has gained significant popularity as a dietary supplement due to its rich content of micro- and macro-nutrients. Of particular interest is a water soluble phycobiliprotein derived from <i>Spirulina</i> known as phycocyanin C (C-PC), which stands out as the most abundant protein in this cyanobacterium. C-PC is a fluorescent protein, with its chromophore represented by the tetrapyrrole molecule phycocyanobilin B (PCB-B). While C-PC is commonly employed in food for its coloring properties, it also serves as the molecular basis for numerous nutraceutical features associated with <i>Nutrients1752https://www.ebi.ac.uk/biostudies/studies/S-EPMC11174898biostudies-literatureNutraceutical Features of the Phycobiliprotein C-Phycocyanin: Evidence from <i>Arthrospira platensis</i> (<i>Spirulina</i>).PMC11174898Citi VLutzu GANieri PDunford NTTorre SUsai LAktay NFlori LfalseNutraceutical Features of the Phycobiliprotein C-Phycocyanin: Evidence from <i>Arthrospira platensis</i> (<i>Spirulina</i>).<i>Arthrospira platensis</i>, commonly known as <i>Spirulina</i>, is a photosynthetic filamentous cyanobacterium (blue-green microalga) that has been utilized as a food source since ancient times. More recently, it has gained significant popularity as a dietary supplement due to its rich content of micro- and macro-nutrients. Of particular interest is a water soluble phycobiliprotein derived from <i>Spirulina</i> known as phycocyanin C (C-PC), which stands out as the most abundant protein in this cyanobacterium. C-PC is a fluorescent protein, with its chromophore represented by the tetrapyrrole molecule phycocyanobilin B (PCB-B). While C-PC is commonly employed in food for its coloring properties, it also serves as the molecular basis for numerous nutraceutical features associated with <i>2024-01-01T00:00:00Z2024 Jun2026-05-21T03:22:05.634Z2026-05-21T03:09:28.398ZS-EPMC111748983889268610.3390/nu16111752