Na plus /K plus enhanced the stability of the air/water interface of soy hull polysaccharide and intestinal mucus

文献类型: 外文期刊

第一作者: Wu, Xinghui

作者: Wu, Xinghui;Yang, Lina;Xia, Mingjie;Yu, Kejin;Cai, Wenqi;Liu, He;Yang, Lina;Shi, Taiyuan;Xie, Mengxi

作者机构:

关键词: Soy hull polysaccharide; Mucus; Ion; Air; water interface; Stability

期刊名称:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ( 影响因子:8.2; 五年影响因子:7.8 )

ISSN: 0141-8130

年卷期: 2023 年 245 卷

页码:

收录情况: SCI

摘要: The stable energy barrier of mucin and soy hull polysaccharide (SHP) is established at the air/water interface in the intestinal fluid and is conducive to the absorption and transportation of nutrients. This study aimed to investigate the effect of different concentrations (0.5 % and 1.5 %) of Na+ and K+ on the energy barrier through the digestive system model in vitro. The interaction between ions and microwave-assisted ammonium oxalateextracted SP (MASP)/mucus was characterized by particle size, zeta potential, interfacial tension, surface hydrophobicity, Fourier transform infrared spectroscopy, endogenous fluorescence spectroscopy, microstructure, and shear rheology. The results showed that the interactions between ions and MASP/mucus included electrostatic interaction, hydrophobic interaction, and hydrogen bond. The MASP/mucus miscible system was destabilized after 12 h, and the ions could improve the system stability to some extent. MASP aggregated continuously with the increase in the ion concentration, and large MASP aggregates were trapped above the mucus layer. Furthermore, the adsorption of MASP/mucus at the interface increased and then decreased. These findings provided a theoretical basis for an in-depth understanding of the mechanism of action of MASP in the intestine.

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