Pectinase is a class of enzymes that includes galacturonases, pectinolytic enzymes, and pectin lipases. Acting on the glycosidic bond in pectin, breaking the pectin molecule and degrading it into small molecules. This continuous degradation makes the solids in the juice settle down, enhances the clarification effect, and improves the filtration speed and juice yield. Pectinase has a specialized role in the degradation of pectin.