Figure 4: Chemical structure of some common MAAs reported in cyanobacteria. A-Mycosporine-glycine (λmax 310 nm), BAsterina- 330 (λmax 330 nm), C-Palythinol (λmax 332 nm), DPorphyra- 334 (λmax 334 nm), E- Shinorine (λmax 334 nm) and FMycosporine- 2-glycine (λmax 334 nm).