Exopolysaccharides (EPS) are the large molecular weight carbohydrate polymers extracted from higher plants, algae, fungi and bacteria. The thermophilic Bacillus zhangzhounesis 2CA licheniformis 2CS used in present study were isolated Çermik hot springs. growth conditions of strains designated as different basal media (M1, M2 M3), carbon sources concentrations yeast extract (%w v-1: 0.05, 0.1, 0...