PRELIMINARY CHARACTERISTICS OF LACTOBACILLUS AND BIFIDOBACTERIUM STRAINS AS PROBIOTIC CANDIDATES

Microflora inhabiting the gastrointestinal tract of humans is there in dynamic balance that can be disrupted, which in turn leads to diseases. One of the methods applied to restore this balance could be administration of probiotics. Seven Lactobacillus and two Bifidobacterium strains, isolated from the gastrointestinal tract and bio-yoghurts, were characterised. Two of them - L. acidophilus BS and L. salivarius AWH revealed good survival at low pH (100% and 90%, respectively) and in the presence of a high concentration of bile salts (89% and 74%, respectively). In addition, they revealed high antagonistic activity against Salmonella and coaggregated with this pathogen. The observed autoaggregation and hydrophobic properties of their cell wall suggest their ability to adhere to epithelial cells. The results proved L. acidophilus BS and L. salivarius AWH strains to be candidates for new probiotics, however, it needs further confirmation under in vivo experiments.

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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.