“…They also cause changes in the gastrointestinal environment, such as the induction of an acid pH below 4, by the production of short-chain fatty acids (SCFA), such as acetates, butyrates, etc. ( Agudelo et al, 2016 ). In addition, they possess the ability to adhere to enterocytes and colonocytes, affecting the composition of the intestinal ecosystem, by increasing the non-dependent barrier effect of the immune system, and as a result of the production of bacteriocins, they compete with various pathogens, hindering the passage of pathogenic bacteria to the lymph nodes and blood ( Gusils, Cuozzo, Sesma, & González, 2002 , Tormo, 2006 , Alavi, Khalili, Esmaeil-Jamaat, Baluchnejadmojarad, & Roghani, 2012 ).…”