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The paper examines the properties of amylose, high Mw amylose, low Mw amylose, and amylopectin obtained using dielectric spectroscopy and X-ray methods. We demonstrate that solid amylose exists in an amorphic state, whereas high Mw amylose, low Mw amylose, and amylopectin exist in an amorphocrystalline state. We report the presence of the dielectric relaxation in the high Mw amylose, low Mw amylose, and amylopectin and its absence in amylose. Such a result can be attributed to the presence of the crystalline phase in the former. The decrease in the polymerization degree and the branching in the amylose molecule leads to an increase in the relaxation intensity.

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Influence of the Structure of Amylose and Amylopectin on Their Dielectric Properties

  • 会议论文

  • 发表日期：

    2025年

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  • M. O. Sosnovska,
  • S. O. Alekseev,
  • O. M. Alekseev,
  • V. V. Klepko,
  • S. D. Nesin,
  • O. O. Mosia,
  • K. S. Yablochkova,
  • M. V. Lazarenko,
  • N. M. Gregirchak,
  • A. V. Varukha,
  • D. A. Andrusenko,
  • M. M. Lazarenko

摘要

The paper examines the properties of amylose, high Mw amylose, low Mw amylose, and amylopectin obtained using dielectric spectroscopy and X-ray methods. We demonstrate that solid amylose exists in an amorphic state, whereas high Mw amylose, low Mw amylose, and amylopectin exist in an amorphocrystalline state. We report the presence of the dielectric relaxation in the high Mw amylose, low Mw amylose, and amylopectin and its absence in amylose. Such a result can be attributed to the presence of the crystalline phase in the former. The decrease in the polymerization degree and the branching in the amylose molecule leads to an increase in the relaxation intensity.