Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (1): 20250328.doi: 10.7503/cjcu20250328

• Article • Previous Articles     Next Articles

Aqueous Ionic Liquid Mediated Hydrolysis of Native Corn Starch to Obtain Different Low Molecular Weight Starch

YANG Rui, WANG Xiaolin, DANG Qian, LIU Zhengping()   

  1. BNU Key Lab of Environmentally Friendly and Functional Polymer Materials,Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875,China
  • Received:2025-10-31 Online:2026-01-10 Published:2025-12-16
  • Contact: LIU Zhengping E-mail:lzp@bnu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(51173019);国家自然科学基金(51173019)

Abstract:

In this work, we proposed a strategy for the hydrolysis of native corn starch after the treatment of corn starch in an ionic liquid aqueous solution, and it is an awfully “green” and simple means to obtain starch with low molecular weight and amorphous state. X-ray diffraction results revealed that the natural starch crystalline region was largely disrupted by ionic liquid owing to the broken intermolecular and intramolecular hydrogen bonds. After hydrolysis, the morphology of starch changed from particles of native corn starch into little pieces, and their molecular weight could be effectively regulated during the hydrolysis process, and also the hydrolyzed starch samples exhibited decreased thermal stability with the extension of hydrolysis time. This work would counsel as a powerful tool for the development of native starch in realistic applications.

Key words: Native corn starch, Ionic liquid, Hydrolysis, Molecular weight

CLC Number: 

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