Probiotics have been characterized as biopreparations that contain living cells or metabolites of stabilized autochthonous microorganisms that optimize the colonization and composite of gut microbiota in both animals and humans and have a stimulatory affect on the digestive process and immunity of the host
Lactic acid bacteria (LAB), especially strains of Lactobacillus, are normally found in the human adult gastrointestinal (GI) tract, and have been prevalently used as probiotics, exclusively in fermented dairy products
robiotic bacteria are non-pathogenic microorganisms that, when ingested in proficient viable number, perform a positive influence on the host to upgrade the intestinalmicrobiota by inhibiting the growth and/or activity of pathogen bacteria