Multiscale structure, physicochemical properties, and in vitro digestibility on complex of static magnetic field modified rice starch with quercetin

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-08-11 DOI:10.1016/j.foodchem.2025.145874

Wei-yi Zhang , Yang Yang , Yue Xu, Yan Wang, Xiao-fei Liu, Guang Zhang, Chun-min Ma, Na Zhang

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引用次数: 0

Abstract

This study investigated the effects of static magnetic field-quercetin synergistic modification on the multiscale structure (morphological, crystalline, short-range, and long-range ordered structure), physicochemical properties, and in vitro digestibility of rice starch. The results demonstrated that the synergistic treatment significantly improved starch solubility while reducing swelling power and viscosity. SEM revealed enhanced surface porosity, fissures, and decreased particle size. XRD and FTIR analyses demonstrated improved crystallinity and short-range molecular ordering, leading to enhanced thermal stability. Molecular docking simulations revealed that quercetin bound to starch molecules through hydrogen bonding and hydrophobic interactions. The synergistic treatment significantly reduced in vitro digestibility while increasing resistant starch content. This study demonstrates an innovative starch modification strategy enabling development of functional starch products with tailored digestibility profiles, offering promising applications in low-glycemic-index food formulations.

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静磁场修饰大米淀粉与槲皮素配合物的多尺度结构、理化性质及体外消化率研究

本文研究了静磁场-槲皮素协同改性对水稻淀粉多尺度结构（形态、结晶、近程和远程有序结构）、理化性质和体外消化率的影响。结果表明，增效处理显著提高了淀粉的溶解度，降低了淀粉的溶胀力和粘度。扫描电镜显示，表面孔隙度、裂缝增加，颗粒尺寸减小。XRD和FTIR分析表明，结晶度和短程分子有序性得到改善，从而提高了热稳定性。分子对接模拟显示槲皮素通过氢键和疏水相互作用与淀粉分子结合。协同处理显著降低了体外消化率，同时增加了抗性淀粉含量。本研究展示了一种创新的淀粉改性策略，能够开发具有定制消化率特征的功能性淀粉产品，在低血糖指数食品配方中提供了有前途的应用。

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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.