Pectinase-Based Bioprocesses for Circular Bioeconomy and Sustainable Industrial Development.

Pectinases play a vital role in the degradation of pectic part of the plant cell wall and are considered in the group of hydrolytic enzymes. In the present scenario, demand of economically feasible and environment friendly techniques and approaches has significantly led the research on the microbial production, standardization of process parameters and improvements of pectinases. The development of pectinase-based bioprocesses has been found to promote sustainable industrial practices by reducing the use of chemicals, energy, and waste, thereby supporting eco-friendly production systems. The unique aspect of this review is that it explains traditional methods of pectinase production alongside novel methods, which include solid-state and submerged fermentation, recombinant DNA techniques, heterologous gene expression, protein engineering, CRISPR/Cas genome editing technologies, enzyme immobilization, and nanobiotechnological methods, which improve the production, stability, and performance of pectinases. It further demonstrates the increasing importance of the use of pectinases in sustainable manufacturing through decreasing the use of chemicals and energy, as well as reducing waste production from industry. It illustrates that innovations in microbial strain engineering, process optimization, and utilization of low-cost substrates have significantly increased the economic viability and efficiency of producing pectinases. Yet, some issues associated with commercialization, standardization of production processes, recovery, and stability of enzymes still exist. Overall, this review paper gives an overview of the recent advancements and limitations of next-generation pectinases.