Used in microbiology labs to cultivate and maintain Bifidobacterium species, especially Bifidobacterium longum subsp. infantis and related strains. Supports growth of probiotic bacteria found in the human gut, making it valuable for research on gut health, infant nutrition, and functional foods. Commonly used in studies involving breast milk oligosaccharide utilization by gut microbes. Also applied in quality control during production of probiotic supplements and fermented dairy products to ensure strain viability and purity.