Editing Desizing (section)

===Enzymatic desizing===
Enzymatic desizing is the classical desizing process of degrading starch size on cotton fabrics using enzymes. [[Enzyme]]s are complex organic, soluble bio-catalysts, formed by living organisms, that catalyze chemical reaction in biological processes. Enzymes are quite specific in their action on a particular substance. A small quantity of enzyme is able to decompose a large quantity of the substance it acts upon. Enzymes are usually named by the kind of substance degraded in the reaction it catalyzes.

[[Amylase]]s are the enzymes that [[hydrolysis|hydrolyses]] and reduce the molecular weight of [[amylose]] and [[amylopectin]] molecules in starch, rendering it water-soluble enough to be washed off the fabric.

Effective enzymatic desizing require strict control of [[pH]], [[temperature]], [[water hardness]], [[electrolyte]] addition and choice of [[surfactant]].