Foods (Oct 2023)

Long-Term Retrogradation Properties and In Vitro Digestibility of Waxy Rice Starch Modified with Pectin

  • Yuheng Zhai,
  • Hao Zhang,
  • Jiali Xing,
  • Shangyuan Sang,
  • Xinyan Zhan,
  • Yanan Liu,
  • Lingling Jia,
  • Jian Li,
  • Xiaohu Luo

DOI
https://doi.org/10.3390/foods12213981
Journal volume & issue
Vol. 12, no. 21
p. 3981

Abstract

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In recent years, the blending of hydrocolloids and natural starch to improve the properties of natural starch has become a research hotspot. In this study, the effects of pectin (PEC) on the retrogradation properties and in vitro digestibility of waxy rice starch (WRS) were investigated. The results showed that PEC could significantly (p 23 free water signal appeared in the natural WRS paste, while only a small free water signal appeared in the compound system with 2% PEC addition. Moreover, addition of PEC could reduce the starch digestion rate and digestibility. When the content of PEC increased from 0% to 10%, the digestibility decreased from 82.31% to 71.84%. This study provides a theoretical basis for the further application of hydrocolloids in starch-based foods.

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