C-Phycocyanin, blue biliprotein of Spirulina, is rapidly digested by pepsin.
Sequences of peptic chromopeptides were determinated by tandem mass spectrometry.
Antioxidant, metal-chelating and cytotoxic effect on cancer cell lines were shown.
Chromopeptides protect human erythrocytes from free radical-induced hemolysis.
Chromophore is mainly responsible for observed biological effects of chromopeptides