Here, we present a protocol to quantitatively determine phycobiliprotein content in the cyanobacterium Synechocystis using a spectrophotometric method. The extraction procedure was also successfully applied to other cyanobacteria and algae strains; however, due to variations in pigment absorption spectra, it is necessary to test the spectrophotometric equations for each strain individually.
Zavřel, T., Chmelík, D., Sinetova, M. A., Červený, J. Spectrophotometric Determination of Phycobiliprotein Content in Cyanobacterium Synechocystis. J. Vis. Exp. (139), e58076, doi:10.3791/58076 (2018).