Extracellular polysaccharides from Nostoc flagelliforme in liquid suspension culture with BG-11 medium were obtained. By measuring the diameter of the inhibition zone using filter paper disc diffusion method, the antimicrobial activity of the exopolysaccharides against different bacteria and fungi were evaluated, and the anti-inflammatory activity was also tested by examining their effects on the mouse ear swelling induced by xylene and the swelling of hind paws in mice induced by carrageenin. The results s...