摘要：Due to the beneficial effects to health, probiotics have started to increasingly use as food supplement or for the treatment of infectious disease as well as in various food products, and this has led the researchers to make new studies. Bacillus species can show probiotic properties via their spores and metabolites (enzyme, antimicrobial substances etc.), and with these features, they attract the attention of researchers. Recently, several studies have been carried out related to evaluation of these species as probiotics and it is particularly investigated whether these bacteria are safe to use by human. In this study, behavior of Bacillus species in gastrointestinal tract, their mechanisms of action as probiotics, and their possibilities of usage were reviewed.
