Abstract
Abstract In this work, we discuss the possibilities of using bacterial cellulose (BC) produced by Gluconacetobacter xylinus as carrier support for the immobilization of probiotic strains of Lactobacillus spp. In our study, immobilization of the microorganisms was performed by the adsorption of bacterial cells on the surface of the synthetized BC and by a simultaneous cultivation of the probiotic bacteria with cellulose-synthetizing G. xylinus . Co-cultures were conducted in stationary cultures, in which BC was synthesized as pellicles on the medium surface and in shaken cultures in which BC was synthetized in the forms of beads. The experiments carried out also included the analysis of the survival of immobilized probiotic bacteria in the presence of gastric juices and bile salts solution. The results showed that immobilization of probiotic Lactobacillus in BC during co-culture with G. xylinus was the most effective immobilization method, providing high-level protection of the microorganisms against the influence of gastric juices and bile salts.
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