*1.2.6.5 Wastewater treatment*

Typically multiples steps such as physical dewatering, spray irrigation, chemical coagulation and chemical hydrolysis are carried out for the treatment of wastewater from vegetable food industries that mostly contain pertinacious materials. Pectinases used in various industrial processes are a better choice as compared to traditional chemical methods because they are cost effective and ecofriendly. They can eliminate pectin containing substances and can make activated sludge treatment more feasible [33, 49, 52].

### *1.2.6.6 Coffee and tea fermentation*

Pectinase has a significant role in tea and coffee fermentation. In addition to increased tea fermentation, pectinase also destroys the foaming character of instant tea powder by degradation of pectin [53].

#### *1.2.6.7 Paper industry*

The uses of different enzymes such as xylanase, ligninase, mannanase, pectinase and α-galactosidase are increasing for biobleaching and papermaking in the paper industry [54, 55]. Pectinase lowers the cationic requirement in papermaking processes [56, 57].

#### *1.2.6.8 Animal feed*

Pectinase has been used in feed preparation as multienzyme cocktail with glucanase, xylanase, protease and amylase that reduce the feed viscosity and increase the absorption nutrients, release nutrients either through hydrolysis of non-degradable fibers [49].
