Influence of static magnetic field pretreatment on the structure, physicochemical and functional properties of dietary fiber in corn sprouts

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED Food Chemistry Pub Date : 2025-02-20 DOI:10.1016/j.foodchem.2025.143524

Xuenan Li , Shijie Sun , Jiawen Liu , Mingzhu Zheng , Dan Cai , Huimin Liu , Jingsheng Liu

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Abstract

Dietary fiber (DF) from corn sprouts, subjected to pretreatment with static magnetic field (SMF), was systematically investigated for its structural and functional characteristics using an enzymatic method. After SMF treatment, the surface of soluble DF showed higher pore density and pore structures, and insoluble DF showed more folds and a concave-convex surface profile. FT-IR and thermogravimetric analyses also showed that SMF pretreatment improved the functional group structure and thermal stability of DFs in corn sprouts. Moreover, SMF pretreatment improved the inhibitory effects on α-amylase and α-glucosidase activities, as well as increased water holding, oil holding, and water swelling capacities. Compared to the untreated corn sprouts, the DF obtained from SMF treatment exhibited stronger antioxidant activity. In summary, these findings suggest that SMF pretreatment enhances the physicochemical and functional properties of DF derived from corn sprouts. It suggests that SMF can serve as a prospective technique for corn sprouts products processing.

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静磁场预处理对玉米芽中膳食纤维结构、理化及功能特性的影响

以玉米芽为原料，经静磁场（SMF）预处理，采用酶促法对其结构和功能特性进行了系统研究。SMF处理后，可溶DF表面孔隙密度和孔隙结构增加，而不可溶DF表面褶皱增多，表面轮廓凹凸。FT-IR和热重分析也表明，SMF预处理改善了玉米芽中DFs的官能团结构和热稳定性。此外，SMF预处理提高了对α-淀粉酶和α-葡萄糖苷酶活性的抑制作用，提高了持水、持油和水膨胀能力。与未处理的玉米芽相比，SMF处理得到的DF具有更强的抗氧化活性。综上所述，SMF预处理提高了玉米芽DF的理化性质和功能特性。说明SMF技术在玉米芽制品加工中具有广阔的应用前景。

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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.