ANTIBACTERIAL EFFECT OF BACTERIOCINS ISOLATED FROM  LACTOBACILLUS  STRAINS ON SELECTED GRAM-NEGATIVE PATHOGENIC RODS - SHORT REPORT.

The aim of the present paper was to determine the effect of bacteriocins produced by Lactobacillus strains isolated from pickled vegetables on Gram-negative pathogenic rods. The antibacterial effect of bacteriocins was determined with the diffusion method, employing the well technique. Incubation was carried out for 24 hours, under the optimum conditions for test strains, and then growth inhibition zones around wells were observed. The results obtained show that individual Lactobacillus strains produce antibacterial substances - bacteriocins, characterized by different activity towards selected strains of Yersinia enterocolitica, Salmonella E. coli O157:H7 and E. coli K88. Test strains were more sensitive to bacteriocins synthesized by Lactobacillus plantarum, as their growth was inhibited at the activity level 4 - 32 AU/mL. Bacteriocins of Lactobacillus brevis strains inhibited their growth at 128 and 256 AU/mL.

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MODULATION OF IMMUNOGLOBULIN A (IGA) RESPONSE BY OLIGOFRUCTOSE AND ITS SYNERGISTIC SETS WITH BIFIDOBACTERIA IN RATS.

IMMUNOSTIMULATIVE ACTIVITY OF PROBIOTIC BIFIDOBACTERIUM STRAINS DETERMINED IN VIVO USING ELISA METHOD

ANTIBACTERIAL ACTIVITY OF THE PREPARATION FROM LACTOBACILLUS PLANTARUM CULTURE AGAINST YERSINIA ENTEROCOLITICA

SELECTION OF LACTOCOCCUS LACTIS STRAINS PRODUCING BACTERIOCINS ACTIVE AGAINST PATHOGENIC BACTERIA.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.