0973-7510 Journal of Pure and Applied Microbiology 2581-690X DR. M.N. Khan 10.22207/JPAM.15.2.28 Study of the Antimicrobial Potential of Bacteria found in Natural Resources Noskova Svetlana Ivanova Svetlana Prosekov Alexander Dyshlyuk Lyubov Ulrikh Elena Shevchenko Margarita Babich Olga Sukhikh Stanislav Institute of Living Systems, Immanuel Kant Baltic Federal University, A. Nevskogo Street 14, Kaliningrad, 236016, Russia. Natural Nutraceutical Biotesting Laboratory, Kemerovo State University, Krasnaya Street 6, Kemerovo, 650043, Russia. Department of General Mathematics and Informatics, Kemerovo State University, Krasnaya Street, 6, Kemerovo 650043, Russia. Laboratory of Biocatalysis, Kemerovo State University, Krasnaya Street 6, Kemerovo, 650043, Russia. Department of Bionanotechnology, Kemerovo State University, Krasnaya Street 6, Kemerovo, 650043, Russia. Kuzbass State Agricultural Academy, Markovtseva street, 5, Kemerovo 650056, Russia. 26 05 2021 15 2 759 771 Copyright © 2021 The Author(s) 2021 This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.https://creativecommons.org/licenses/by/4.0/

Bacteriocins are of great interest as potential antimicrobial agents against various types of bacteria, fungi, and viruses. Isolates of microorganisms derived from natural sources were used in the current study, including lactic acid bacteria and other antagonistic microorganisms. The species of the microorganisms were determined using 16S rDNA and ITS nrDNA analyses. E. coli, S. enterica, S. aureus, P. aeruginosa, B. mycoides, A. faecalis, P. vulgaris, S. flexneri , L. monocytogenes, C. albicans, A. flavus, and P. citrinum were used as pathogenic and opportunistic strains. It was found that 11 strains of antagonistic microorganisms have significant antimicrobial activity against all pathogenic and opportunistic microorganisms. The antimicrobial properties of these microorganisms are currently under study.

Keywords Bacteriocins Lactic acid bacteria Antagonistic microorganisms Isolates Antimicrobial activity Pathogenic microorganisms