Properties and characterization of starch as a natural binder: A brief overview

This paper was reviewed about the properties and characterization of starch as a natural binders.
Starch is one of the most abundant organic compounds and applied as a binder. The efficiency of
binder are affected by the characteristic and properties of starch. The characteristics of starch are
determined by the biological origin. Starch is composed of D-glucose in polysaccharides and it was
isolated from leaves, stems, tubers, seeds, and roots of higher plants where it serves as an energy
reserve. This review concentrates the several types of characterization which are structural
properties, morphology properties, viscosity and functional group of starch. The X-ray diffraction
result shows that the relative crystallinity decreased for modified starch compared with native starch
while scanning electron microscope shows the modified starch slightly has rough surface compared
with native starch. Nowadays, the concern on eco-environmental issues is increasing and this
review has shown that starch is eco-environmental friendly binder that can be used in various
application.