Research Article

Two-Dimensional Thin Layer Chromatography-Bioautography Designed to Separate and Locate Metabolites with Antioxidant Activity Contained on Spirulina platensis

Figure 2

Representative photographs of 2D thin layer chromatograms for a methanolic extract of Spirulina platensis, developed with the indicated mobile phases and visualized under visible light (VL) and under ultraviolet light (UVL366) (central column) and the correspondent 2D thin layer biochromatograms, obtained after DPPH treatment at t0 and (right column).