PRODUCTION OF ACYLATED EXOPOLYSACCHARIDES IN A BATCH CULTURE OF ACINETOBACTER SP

Exopolysaccharides produced by Acinetobacter sp. in batch culture disp lay changes in the ratio of acylated and nonacylated components and in the content of fatty acids in acylated polysaccharides, which affects the viscosity of exopolysaccharide solutions in the presence of catio ns, in the H+ form, and in the Cu2+-glycine system. The amount of acyl ated polysaccharides produced and the extent of their acylation are de termined by the total concentration of monovalent cations in the growt h medium.