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Plants store glucose in the form of starch.Starch can be separated into two fractions-amylose and amylopectin. Natural starches are mixtures of amylose (10-20%) and amylopectin (80-90%) Starch is a polymer of glucose molecules. It consists of a mixture of 2 polysaccharides:
25% amylose - about 2000 glucose residues are linked by the alpha 1-4 glycosidic linkage. It is unbranched and forms a helix.
75% amylopectin - branched chains about 100000 glucose units. Glucose is joined by the alpha 1-4 glycosidic linkage and at branched points the alpha 1-6 glycosidic linkages occur.

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15y ago

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