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  • Title: SOS Response Inhibitory Properties by Potential Probiotic Formulations of Bacillus amyloliquefaciens B-1895 and Bacillus subtilis KATMIRA1933 Obtained by Solid-State Fermentation.
    Author: Prazdnova EV, Mazanko MS, Bren AB, Chistyakov VA, Weeks R, Chikindas ML.
    Journal: Curr Microbiol; 2019 Mar; 76(3):312-319. PubMed ID: 30603963.
    Abstract:
    The ability of fermentates of two potential probiotic strains, Bacillus amyloliquefaciens B-1895 and Bacillus subtilis KATMIRA1933, to lower the SOS response in bacteria was evaluated using Escherichia coli-based Lux biosensors (pRecA-lux) and the tested bacilli fermentates obtained through solid-state fermentation. The SOS response was stimulated by the addition of ciprofloxacine. Preparations of both Bacillus fermentates demonstrated SOS-inhibitory activity (up to 54.21%). The strain КATMIRA1933 was characterized by higher SOS-inhibitory activity. The active components of the fermentates were stable against heating, proteinase, and RNase action.
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