Present study was aimed to assess the characteristics and chemical composition of bioflocculant BN-25. It was observed that active flocculation substances of bioflocculant BN-25 were found mainly in the fermentation broth. The flocculation activity of bioflocculant BN-25 exhibited thermal stability during continuous boiling on water bath for 30 minutes. Ultraviolet(UV),Fourier transform infrared(FTIR) and content analysis revealed that bioflocculant BN-25 contained large amount of amino,hydroxyl,carboxyl,an...