2. Academic Validation
  3. Na+/K+ enhanced the stability of the air/water interface of soy hull polysaccharide and intestinal mucus

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

  • Int J Biol Macromol. 2023 Jun 7;125206. doi: 10.1016/j.ijbiomac.2023.125206.
Xinghui Wu 1,  Lina Yang 2,  Mingjie Xia 1,  Kejin Yu 1,  Wenqi Cai 1,  Taiyuan Shi 3,  Mengxi Xie 3,  He Liu 4
Affiliations

Affiliations

  • 1 College of Food Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China.
  • 2 College of Food Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China; Food and Processing Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China. Electronic address: yangln10@lzu.edu.cn.
  • 3 Food and Processing Research Institute, Liaoning Academy of Agricultural Sciences, Shenyang, Liaoning 110161, China.
  • 4 College of Food Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China. Electronic address: liuhe2069@163.com.
PMID: 37295695 DOI: 10.1016/j.ijbiomac.2023.125206
Abstract

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 oxalate-extracted 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.

Keywords

Air/water interface; Ion; Mucus; Soy hull polysaccharide; Stability.

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