Construction of OSA-starch and caffeic acid composite system driven by high pressure homogenization: Multiscale structural evolution and digestibility regulation mechanism

IF 8.5 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-07-15 DOI:10.1016/j.foodchem.2025.145568

Ran-Ran Deng, Ran Feng, Ran Meng, Si-Jie Wu, Han Tao, Bao Zhang

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Abstract

The effect of modification treatments on the structure and function of starch-polyphenol complexes has become a hot research topic. Therefore, this study aims to systematically investigate the structural reorganization and digestibility modulation of octenyl succinic anhydride modified rice starch (OR)-caffeic acid complexes (ORCA) under gradient high pressure homogenization (HPH) pressures (50, 80, and 110 MPa). HPH promoted the interaction between starch and CA compared to the non-HPH-treated samples. Among the HPH-treated samples, ORCA exhibited a more complete granular structure and thermal stability (311.65 °C) compared to the rice starch-CA complexes (RCA). Dual modification significantly improved resistant starch content. The underlying mechanism by which ORCA and HPH treatments regulated starch digestibility involved HPH-driven structural reorganization, which promoted the formation of a new densely ordered structure and crystalline barrier. This study provides theoretical support for the design of starch-based functional foods with anti-digestive properties.

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高压均质驱动下osa -淀粉-咖啡酸复合体系的构建：多尺度结构演化及消化调节机制

改性处理对淀粉-多酚配合物结构和功能的影响已成为研究的热点。因此，本研究旨在系统研究辛烯基丁二酸酐修饰大米淀粉(OR)-咖啡酸配合物（ORCA）在梯度高压均质（HPH）压力（50、80和110 MPa）下的结构重组和消化率调节。与未经HPH处理的样品相比，HPH促进了淀粉与CA之间的相互作用。在hph处理的样品中，ORCA比大米淀粉- ca配合物（RCA）具有更完整的颗粒结构和热稳定性（311.65 °C）。双重改性显著提高了抗性淀粉含量。ORCA和HPH处理调节淀粉消化率的潜在机制涉及HPH驱动的结构重组，促进了新的密集有序结构和晶体屏障的形成。本研究为淀粉基抗消化功能食品的设计提供了理论支持。

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.