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2018, N 2 (32) |
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GENERAL BIOLOGY
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Ilyina L., Antsupova T. |
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Antimicrobial characteristics of tannins species of the family Geraniaceae of Buryatia |
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The article presents the results of tests of a 0.1% solution of tannins isolated from the above and underground organs of the species of the family Geraniaceae growing in Buryatia against gram-positive strains (Staphylococcus aureus, strain 906) and Gram-negative (Escherichia coli, strain M- 17) to bacteria. The investigated samples of the plant material showed a bactericidal effect in relation to coccal bacteria St. aureus, but showed a negative bactericidal effect against E. coli rods. Probably, the concentration of the solution is insufficient for the death of these bacteria and experiments with solutions of different concentrations are necessary to determine the optimum concentration of the solution of tannins to suppress the growth of various microorganisms. In addition to the standard strains, grown microorganisms isolated from cattle excrement were used. We checked the action of tannins extracted from different organs of two species of Geranium L. genus (Geranium transbaicalicum, G. pratense) with respect to Bacillus cereus. It was determined that tannins suppress the growth of opportunistic pathogens of B. cereus.
Keywords: FAMILY Geraniaceae, TANNINS, OVERGROUND AND UNDERGROUND PLANT ORGANS, ANTIMICROBIAL CHARACTER |