The effect of Aerosil A-300 on the growth of bacteria Lactobacillus plantarum, Bifidobacterium adolescentis and Streptococcus lactis

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Abstract
The article presents data on the effect of Aerosil A-300 on the growth of bacteria Lactobacillus plantarum No. 7-317, Bifidobacterium adolescentis No. 17-316, Streptococcus lactis No. 5. The results of studies have shown that the most optimal for the growth of bacteria content of Aerosil A-300 in the environment is 2.0%. It has been found that when Aerosil was added to nutrient media, bacteria grew and actively accumulated a significant number of viable cells: 3.8–4.5×107 CFU/cm3 (control 1.1–2.5×107 CFU/cm3) according to the average technological parameters pH 7.0 and the temperature of 37 ℃. Studies have shown that the relative increase in the number of cells, by which we assessed the effect of Aerosil on growth, was in Lactobacillus plantarum No. 7-317 (87.5 ± 12.0), which is 23% higher than control, in Bifidobacterium adolescentis No. 17-316 — (79.2 ± 11.9), which exceeded the control data by 14%

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