What You Need to Know
During boiling, yam starch undergoes gelatinization as amylopectin absorbs water and swells, forming a viscous paste. Mechanical shear during pounding breaks down amylopectin chains, increasing viscosity and creating an elastic network. Proper temperature control prevents retrogradation and maintains desired texture.
The Science
Primary Reaction
Starch gelatinization followed by mechanical shear-induced breakdown of amylopectin chains