Bifidobacterium animalis bacteria
Bifidobacterium animalis strains display the following
characteristics typical for the genus Bifidobacterium:
Gram-positive, non-motile, non-spore forming, irregular rod-shaped
anaerobes. Glucose is fermented using the characteristic enzyme
fructose-6-phosphate phosphoketolase in the so-called
Bifidus-shunt. Dextrin, a-D-glucose, maltose, maltotriose,
D-raffinose, and sucrose are fermented; the starch is not
fermented. Bifidobacterium animalis and Bifidobacterium lactis were
categorized as two distinct species and now are considered as
Bifidobacterium animalis with two subspecies: animalis and lactis.
Among different commercially available strains, Bifidobacterium
animalis spp. lactis BB-12 and Bifidobacterium animalis spp. lactis
DN-173010 has been studied extensively.
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