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<p>The effects of heat moisture treatment (HMT) and ultrasound treatment combined heat moisture (UHMT) on the physicochemical and anti-digestive properties of potato starch-stachyose (PSS) complexes were investigated. The relative crystallinities of PSS complexes prepared by HMT (17.02%) and UHMT (17.43%) were significantly reduced in comparison with potato starch (19.25%). PSS complexes prepared by HMT and UHMT were irregular in shape with wrinkles on the surface, and their sizes of granules were larger than those of potato starch. The viscosities of PSS complexes prepared by HMT and UHMT were significantly enhanced and resulted in an increase in their storage modulus and loss modulus. The function characteristics of PSS complexes prepared by HMT and UHMT were significantly improved in comparison with potato starch. Notably, the PSS complexes prepared by UHMT exhibit superior performance in terms of solubility, expansion, thermal properties, and textural characteristics. The PSS complexes prepared by HMT and UHMT had higher the resistant starch content than potato starch, the highest resistant starch content (52.02%) was observed from PSS complexes prepared by UHMT. In addition, PSS complexes prepared by UHMT had the minimum starch hydrolysis degree C<sub>∞</sub> (47.2%) and the kinetic constant k (0.0151&#xa0;min<sup>− 1</sup>) value.</p>

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Effect of ultrasound treatment combined heat moisture for preparing potato starch-stachyose complexes on their structural and physicochemical properties

  • 期刊论文

  • 发表日期：

    2026年1月22日

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  • Zihao Zhang,
  • Su Zhang,
  • Min Jia,
  • Junqiang Jia,
  • Qiongying Wu

摘要

The effects of heat moisture treatment (HMT) and ultrasound treatment combined heat moisture (UHMT) on the physicochemical and anti-digestive properties of potato starch-stachyose (PSS) complexes were investigated. The relative crystallinities of PSS complexes prepared by HMT (17.02%) and UHMT (17.43%) were significantly reduced in comparison with potato starch (19.25%). PSS complexes prepared by HMT and UHMT were irregular in shape with wrinkles on the surface, and their sizes of granules were larger than those of potato starch. The viscosities of PSS complexes prepared by HMT and UHMT were significantly enhanced and resulted in an increase in their storage modulus and loss modulus. The function characteristics of PSS complexes prepared by HMT and UHMT were significantly improved in comparison with potato starch. Notably, the PSS complexes prepared by UHMT exhibit superior performance in terms of solubility, expansion, thermal properties, and textural characteristics. The PSS complexes prepared by HMT and UHMT had higher the resistant starch content than potato starch, the highest resistant starch content (52.02%) was observed from PSS complexes prepared by UHMT. In addition, PSS complexes prepared by UHMT had the minimum starch hydrolysis degree C∞ (47.2%) and the kinetic constant k (0.0151 min− 1) value.