Starch is composed of amylose and amylopectin with rela-
tive amounts of each component varying according to its plant
source As an example, cornstarch has about 28 wt.% amylose as
compared to cassava starch with 17 wt.%. Film-forming, barrier
and mechanical properties, as well as processing conditions, are
dependent on amylose to amylopectin ratio. In general, an increas-
ing amount of amylose improves the abovementioned properties