Used primarily in microbiology for the enrichment and detection of Staphylococcus aureus in various samples such as food, pharmaceuticals, and cosmetics. The modification enhances the growth of Staphylococcus species while inhibiting competing bacteria through selective agents like sodium chloride and antibiotics. It supports the recovery of injured cells and allows for subsequent identification using plating techniques or biochemical tests. Commonly used in quality control labs to ensure product safety and regulatory compliance.