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Changsha University of Science and Technology
Amylosucrase; digestion-resistant components; physicochemical properties;molecular structure
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Full-Text Articles in Life Sciences
Physicochemical Properties And Molecular Structure Characterization Of Digestion-Resistant Components In Enzymatic Branch-Chain Elongated Waxy Corn Starch, He Jian, Wang Ren, Zhang Hao, Zhou Xing, Chen Zhengxing
Physicochemical Properties And Molecular Structure Characterization Of Digestion-Resistant Components In Enzymatic Branch-Chain Elongated Waxy Corn Starch, He Jian, Wang Ren, Zhang Hao, Zhou Xing, Chen Zhengxing
Food and Machinery
The resistant starch (RS) in enzymatic branch-chain elongated waxy corn starch (WCS) was separated by using in vitro digestion method. Then, the physicochemical properties and molecular structure of RS were characterized. The results showed that the morphology of starch was significantly changed after digestion, and irregular cracks appeared on the surface of RS. Moreover, the improvement of thermal stabilities of RS wasalso observed. These results revealed that the amorphous regions of modified starches were preferably to be hydrolyzed during digestion. Compared to modified WCS, the molecular weight of RS was profoundly decreased (6.03×106～1.13×108 g/mol). In addition, the …