Food and Fermentation Industries >

2021 , Vol. 47 >Issue 17: 166 - 171

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.026296

Structure and components of crude polysaccharide separated by ultrafiltration from Stigma maydis and its activity for promoting probiotics proliferation

  • GONG Chunyu ,
  • XU Shuo ,
  • XU Xianmei ,
  • LIU Yuting
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  • 1(College of Food and Bioengineering,Qiqihar University,Qiqihar 161006,China)
    2(Beverage Engineering Technology Research Center of Fruit-Vegetable and coarse cereals of Heilongjiang Province,Qiqihar 161006,China)
    3(College of Telecommunication and Electronic Engineering,Qiqihar University,Qiqihar 161006,China)

Received date: 2020-11-27

  Revised date: 2021-01-15

  Online published: 2021-09-27

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Abstract

Infrared radiation and scanning electron microscope were used to study the structure of crude polysaccharide separated by ultrafiltration from Stigma maydis. The component of polysaccharide, monosaccharide and mineral elements were analyzed. The results indicated that surface structure of crude polysaccharide showed a lamellar structure with branching edge and rod columnar shape with uneven size, and the surface was smooth. It mainly contained 35.43% of sugar, 34.51% of protein, 4.78% of ash, and a little flavonoid and total phenol, but almost no fat. There were abundant K, Mg, P, Fe and Ca and low content of Zn, Na and Al. The content of K was the highest, reaching 1 196.90 mg/100 g. It was mainly composed of mannose, rhamnose, glucuronic acid, glucose, galactose and arabinose, and its molar ratio was about 1∶0.31∶0.32∶1.39∶3.06∶0.60. It did not contain galacturonic acid and xylose. But there were two unknown peaks in HPLC indicating that the existences of two kinds of additional monosaccharide were available. The results showed that it could promote the proliferation of lactic acid bacteria in yoghurt.

Key words： Stigma maydis; polysaccharides; scanning electron microscope (SEM); monosaccharide

Cite this article

GONG Chunyu , XU Shuo , XU Xianmei , LIU Yuting . Structure and components of crude polysaccharide separated by ultrafiltration from Stigma maydis and its activity for promoting probiotics proliferation[J]. Food and Fermentation Industries, 2021 , 47(17) : 166 -171 . DOI: 10.13995/j.cnki.11-1802/ts.026296

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