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Protein profiles of Spirulina extracts determined by SDS-PAGE and silver nitrate staining. Lane 1, marker; Lane 2, Spirulina whole lysate; Lane 3, distilled water (DW) extract; Lane 4, ethanol (EtOH) extract; Lane 5, phycocyanin (Sigma, P-2172). Arrowheads indicate C-phycocyanin α, β-chain.
