Samples were also vortexed 1 min to release the biofilm attached to the solution into the liquid phase. Subsequently, 10 ml were recovered and concentrated by centrifugation (5 min, 8000 g),
Samples were also vortexed 1 min to release the biofilm attached to the solution into the liquid phase. Subsequently, 10 ml were recovered and concentrated by centrifugation(5 min, 8000 g),