Synthesis and Physicochemical Properties of Exopolysaccharides Produced by Lactic Acid Bacteria Leuconostoc mesenteroides Cultured in Lactose- and Sucrose-Containing Medium

Abstract

The dynamics of Leuconostoc mesenteroides bacteria growth and synthesis of exoplysaccharides when cultured on a medium containing whey and sucrose has been investigated. It was shown that exopolysaccharides were produced during the culture growth and the addition of sucrose increased in the productivity of those compounds without affecting their composition. Using the dynamic and static methods of light scattering, it was shown that sucrose as a medium component modified physicochemical properties of exopolysaccharides changing their structural and thermodynamic characteristics in aqueous medium, which affected their functional activity and determined the way of their most efficient use. kefir fungi, lactic acid bacteria, physicochemical properties of exopolysaccharides.