Microbial Proteases for Detergent and Cleaning Applications

Proteases have revolutionized the detergent industry by offering eco-efficient and high-performance alternatives to traditional chemical-based cleaners. This chapter presents a comprehensive overview of the historical evolution, biochemical mechanisms, and industrial applications of proteases in detergents. Microbial alkaline proteases, especially those from Bacillus species, are widely used for their ability to break down protein-based stains under alkaline and high-temperature conditions. The evolution of enzyme technology—from natural extracts to engineered enzymes—has enhanced protease stability, substrate specificity, and performance in detergent formulations. Key advancements in protein engineering, including site-directed mutagenesis and directed evolution, have enabled the development of enzymes that withstand harsh detergent environments. Proteases not only improve stain removal at lower temperatures but also reduce energy consumption and chemical usage, contributing to environmental sustainability. This chapter also explores formulation strategies, regulatory frameworks, market dynamics, and emerging trends in enzyme-based cleaning solutions. Ultimately, the integration of biotechnological innovations with detergent formulations signifies a major step toward safer, efficient, and sustainable cleaning products for both household and industrial use.