Degradation, structural characterization and hypoglycemic activity of polysaccharides from Codium cylindricum

  • YAN Shanglong ,
  • PAN Chuang ,
  • YANG Xianqing ,
  • CHEN Shengjun ,
  • QI Bo ,
  • HUANG Hui
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  • 1(College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China)
    2(South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences/Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs/National Research and Development Center for Aquatic Product Processing, Guangzhou 510300, China)

Received date: 2021-03-15

  Revised date: 2021-04-29

  Online published: 2021-10-18

Abstract

To improve the biological activities, ultrasound-assisted H2O2-vitamin C and H2O2-Fe2+ methods were used to degrade the polysaccharides from Codium cylindricum. The physicochemical properties of polysaccharides were determined and the monosaccharide composition, surface conformation and glycosidic bond configuration were analyzed. The physicochemical properties determination indicated that the solubility of polysaccharides was significantly improved after degradation, and the particle size and Zeta potential had been found to decrease. The results of LC-MS, AFM and NMR showed that the degraded polysaccharides were composed of the same monosaccharide units and glycosidic bond configuration with Codium cylindricum polysaccharides. Meanwhile, the surface structure had been changed after degradation. The results of in vitro hypoglycemic activity determination demonstrated that polysaccharides from Codium cylindricum had moderate inhibitory activities of α-amylase and α-glucosidase, and the activities were enhanced after degradation. The obtained results could provide a theoretical foundation for the application of Codium cylindricum degraded polysaccharides.

Cite this article

YAN Shanglong , PAN Chuang , YANG Xianqing , CHEN Shengjun , QI Bo , HUANG Hui . Degradation, structural characterization and hypoglycemic activity of polysaccharides from Codium cylindricum[J]. Food and Fermentation Industries, 2021 , 47(18) : 119 -126 . DOI: 10.13995/j.cnki.11-1802/ts.027306

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