The study of the biological properties of probiotic lactobacillus spp. strains under aerobic and microaerophilic cultivation conditions
Ключові слова:
probiotic strains, lactobacteria, adhesive properties, growth characteristics, susceptibility to antibioticsАнотація
The biological properties (growth characteristics, adhesive activity and sensitivity to antimicrobial) of probiotic Lactobacillus strains were studied under different gas composition of incubation atmosphere. It was found that the number of viable lactobacilli cells in the one dose of investigated probiotic preparations was lower than it was claimed by the manufacturer. Gas composition of incubation atmosphere affects cell viability of probiotic strains. The number of colony forming units of lactobacilli under microaerophilic conditions increased in 1,19-1,33 times as compared with aerobic conditions. It was proved that adhesive activity of probiotic Lactobacillus strains and sensitivity to 2th, 3th, 4th generations of cephalosporins (cefuroxime, cefotaxime, cefepime) and tetracyclines (doxycycline) also increased under microaerophilic conditions. The changes of the biological properties of lactobacilli under different cultivation conditions require further study for optimization of correction of dysbiotic disorders.
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