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nature : (C6H10O5) n a more carbohydrates. Yes plant were stored nutrients, found in many fruits and seeds, it is colorless and odorless, white powder, density 1.499-1.513. There hygroscopicity. By amylose (starch granules quality) and amylopectin (starch cortex), two components. Their share of starch with the type of plant to another. Amylose is glucose α-1, 4-glycosidic bond formation of the chain compounds can be amylolysis to maltose. The starch content of about 10% to 30%. Can not soluble in water and paste. Iodine blue case. Amylopectin, divided by the glucose molecules between alpha-1, 4-glycosidic linkage, there is also the alpha-1, 6-glycosidic bond linked. So with branches, about 20 glucose units have a branch, only the external side chain can be amylolysis to maltose. In cold water insoluble and water role is expanding from a paste. Iodine case was purple or red purple. Starch can be amylase or acid decomposition gradually, the process is as follows : starch dextrin �red (red case of iodine) �colorless dextrin (not met iodine color) �maltose �glucose, starch can be seen as the high glucose polymer. In addition to food starch, industrial system for dextrin, maltose, glucose, alcohol, but also for modulation paste, textile sizing, paper sizing, drug tablets repression. May corn, sweet potato and wild Acorn and puerarin other starch-containing material derived extract.
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