High Amylose Preparation

Abstract

The basic properties of corn starch and a new method of corn starch preparation are introduced. After corn is soaked, it is coarsely crushed. After separating embryos, crude starch milk is obtained. The crude starch milk is finely crushed, and proteins and fibers are separated. A starch milk is obtained, and an alkali solution is added to the starch milk to form a starch solution. The temperature of the starch solution is 40℃. to 60℃., the starch solution is filtered to obtain amylose and amylopectin, and the amylose is dissolved. In alkaline solution, while amylopectin is not easily soluble, amylose and amylopectin are separated by filtration. The amylose and amylopectin are directly separated during the process of preparing corn starch by the process of separating the amylose and amylopectin through the different solubility of amylose and amylopectin in hot water, 18.91% of the upper layer was centrifuged for the first time. The product was mainly long amylose.

Characterization of Type-III Resistant Starch Produced by High Shear Mixing Combined with Membrane Separation

“…The amylose separation aimed to yield higher RS-III products because many research proved that RS-III retrogradation is proportional to amylose content [29]. A research found that amylose can be separated from granules using microfiltration membrane for maize starch [30].…”