Lactobacillus thermophilus

"Lactobacillus thermophilus" is a gram-positive, non-motile, non-sporulating rod-shaped bacterium.^[2] It belongs to the genus Bacillus, but has not been formally named or reclassified.^[3] Found mostly in pasteurized milk, the bacterium is reported to grow optimally from 50 °C to 60 °C.^[2] The bacterium is a facultative anaerobe and has shown the ability to create acid using numerous sugars and alcohols.^[2] Most of the lactic acid produced by the organism is D-lactic acid, however studies have shown the production of some L-lactic acid.^[4][5]

"Lactobacillus thermophilus"
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Bacillota
Class:	Bacilli
Order:	Lactobacillales
Family:	Lactobacillaceae
Genus:	Lactobacillus
Species:	L. thermophilus
Binomial name
Lactobacillus thermophilus Ayers and Johnson 1924[1]

Gram Positive Staining on a bacterium from the order Lactobacillus.