Probiotics and their use in food industry

Probiotic bacteria are defined as live microorganisms, which when consumed in the determining quantities, have healthy and beneficial effects. Most of probiotics belongs to the genera Lactobacillus and Bifidobacterium. These and other genera of microorganisms are successfully used in industry, including food industry at present. Probiotics are used primarily in dairy products and food additives in food idustry. Probiotic bacteria, like other organisms, can be to identifie by PCR method that allows amplifying specific regions of DNA. Polymerase chain reaction was performed after DNA isolation from bacterial cultures of three strains using phenol extraction method. PCR specific for the domain Bacteria and genus-specific PCR were used for the confirmation of the presence of bacteria of the genus Lactobacillus