Harnessing Biocatalysis for Green Chemistry: Emerging Innovations and Sustainable Frontiers

Biocatalysis, which combines green chemistry and white biotechnology, provides a sustainable alternative to conventional chemical synthesis. Enzymes and microbial systems act as selective, renewable catalysts, enabling complex reactions under mild conditions with minimal waste and high atom economy. In pharmaceuticals and fine chemicals, biocatalysis supports shorter synthetic routes, improved stereoselectivity, and regulatory compliance. Advances in enzyme engineering, such as directed evolution, rational design, and machine learning, have expanded the capabilities and robustness of biocatalysts. Techniques such as enzyme immobilization and whole-cell catalysis enhance stability and cost efficiency. Case studies, including simvastatin and pregabalin synthesis, showcase its practical benefits. The integration of chemoenzymatic strategies merges enzymatic precision with chemical versatility, streamlining synthesis. Aligned with the 12 principles of green chemistry, biocatalysis reduces hazardous reagents, lowers energy use, and enables renewable feedstocks. As regulatory bodies promote greener practices, its industrial adoption grows. Future directions include AI-guided enzyme discovery and continuous flow systems for scalable, eco-friendly production. This review explores the current landscape, key innovations, and future directions of biocatalysis in sustainable chemical manufacturing. Keywords: Biocatalysis; Green Chemistry, White Biotechnology, Enzyme Engineering, Sustainable Synthesis, Biotransformation, Eco-friendly Catalysis