Abstract
Propionic acid bacteria belong to probiotic microorganisms, probiotic properties of which have not yet been thoroughly investigated. The research describes the probiotic features of milk propionic acid bacteria, including growth at high acidity, tolerance to bile acid, ability to suppress pathogenic microorganisms, and antibiotic susceptibility, as well as the ability to extend the shelf life of various fermented milk products due to the synthesis of propionic acid. Propionic acid bacteria have a robust nature, which makes it easy to overcome technological difficulties in the process of optimizing production. This enables them to be used in the future for the production of various fermented probiotic foods.
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