Used as a selective enrichment medium in microbiological testing, particularly for the detection and isolation of coliform bacteria and Escherichia coli in water, food, and pharmaceutical samples. Supports the growth of target organisms while inhibiting unwanted bacteria through selective agents. Commonly used in environmental monitoring and quality control due to its reliability in detecting fecal contamination. Often employed in conjunction with membrane filtration or most probable number (MPN) techniques for accurate quantification.