Streptococcus thermophilus is an important lactic acid bacterium used for commercial purposes, which contains the production of milk, cheese and other dairy products. This organism is a thermophilic Gram-positive bacterium with an optimal growth at 45 ° C. It is also capable of generating energy in the form of adenosine triphosphate (Streptococcus thermophilus) by aerobic respiration with the presence of oxygen, but without the presence of oxygen, it can still generate ATP by fermentation. S. thermophilus lacks cytochrome oxidase and catalase enzymes. It does not have motility and it does not form spores. Although S. thermophilus is closely associated with other pathogenic streptococci (such as S. pneumoniae and S. pyogenes) is connected, S. thermophilus is as non-pathogenic, alpha-hemolytic species that is classified in the viridians group. The increasing consumer demand for dairy products and booming production of dairy products (Streptococcus thermophilus) led to the investigation thermophilus and sequencing of Strermophilus..
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