A bacterium believed to be responsible for tooth decay (dental caries).
Milk-borne organism, pleomorphic in habit, grows at pH 4.0, and from its possible association with dental caries is also known as L. odontolyticus. L acidophilus is used to sour milk, the product being drunk therapeutically.
A species that produces lactic acid by fermenting the sugars in milk. It is found in milk and in the feces of bottle-fed infants and adults whose diets include a high milk content. It is also part of oral and vaginal flora.
Friendly bacteria that are naturally present in and guard the small intestine.
A bacterium discovered in yogurt that alters the microbial equilibrium within the intestinal tract in a favorable manner.