Cognitive development is Jean Piaget's theory. Through a series of stages, Piaget proposed four stages of cognitive development: the sensorimotor, preoperational, concrete operational and formal operational period.
The versatility of Bifidobacterium longum as a lactic acid microorganism is reflected in its capacity to resist under harsh conditions such as stomach acid, bile, pH fluctuations, and gastrointestinal passage.
Bifidobacterium infantis. About B. longum subsp. infantis. B. infantis is a bifidobacterium that is found in the digestive tract of human infants. It is more accurately called Bifidobacterium longum subsp. infantis. Babies are born with a sterile gut but quickly develop their own population of bacteria acquired during the birthing process and then from their motherâs milk and other food sources.