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Scanning electron micrographs of amylose and amylopectin

Diagramatic representations of amylose and amylopectin.
AMYLOSE AMYLOPECTIN
alpha-1,4 links alpha-1,4 and alpha-1,6-linkages
primarily a glucose polymer primary a glucose polymer
consists of 20% of most cereal
starches
consists of 80% of most cereal starches
contributes primarily to starch gelation* contributes primarily to starch viscosity
about 1/4 molecular size of amylopectin abotu 4 times the molecular size of amylose


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Updated: Wednesday, April 21, 2010.
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