Valorization of agro-industrial waste for pectinase production and its influence on circular economy

Pectinases are a diverse group of enzymes that play a crucial role in modifying or breaking down complex pectic substances. Pectinases are widely distributed among bacteria, fungi, and plants. The global demand for microbial pectinase has significantly increased due to its broad applicability and efficient catalytic capabilities across multiple industries including food processing, textiles, and biofuel production. Their commercial production often relies on expensive substrates, contributing to economic inefficiency and environmental burdens. Utilizing agro-industrial waste and microorganisms for pectinase production offers a rational solution to two interconnected challenges: the cost-effectiveness of enzyme production and the environmental impact of waste generation. Moreover, the valorization of waste materials not only contributes to efficient enzyme production but also exemplifies a circular approach by minimizing environmental impact and promoting sustainable resource efficiency to bioprocessing. This review offers a thorough examination of microbial pectinases, including their production from agro-industrial waste, their various industrial applications, and the current market landscape. It also delves into recent advancements in enzyme development and optimization techniques that have significantly boosted the efficiency and cost-effectiveness of pectinase production. By highlighting these developments, the review emphasizes the potential for this approach to enhance industrial practices and contribute to environmental sustainability.