STUDY OF THE EFFECT OF ADAPTATION OF XANTHOMONAS CAMPESTRIS BACTERIA TO OXIDATIVE STRESS ON XANTHAN GUM BIOSYNTHESIS
This paper presents the effect of adaptation to oxidative stress caused by exogenous hydrogen peroxide on the culture of bacteria Xanthomonas campestris and xanthan biosynthesis. As a result of the study, the difference in the morphology of the non-adapted and adapted cultures was established, which is expressed in the insignificant use of the population form and the color of the culture. An analysis of the molecular weight, monomer composition, synthesized xanthan in the culture medium and the viscosity of the liquid of its aqueous solutions showed a change in this characteristic of the selected culture polysaccharide, which may indicate a positive effect of adaptation on xanthan biosynthesis and its qualitative characteristics.