Food and Fermentation Industries >

2024 , Vol. 50 >Issue 21: 259 - 265

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.037996

Physicochemical properties and structural characterization of soluble dietary fiber of wheat bran

  • QUAN Wenbin ,
  • WANG Juan ,
  • HUANG Jihong ,
  • ZHANG Dale
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  • 1(School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China)
    2(Food and Pharmacy College, Xuchang University, Xuchang 461000, China)
    3(College of Agriculture, Henan University, Kaifeng 475001, China)

Received date: 2023-11-19

  Revised date: 2024-01-23

  Online published: 2024-11-28

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Abstract

As a by-product of wheat grain processing, bran has not been fully utilized.Therefore, the content and physicochemical properties of soluble dietary fiber (SDF) of the bran from four representative wheat varieties (Xin Wheat 26, Xin Wheat 45, Kai Wheat 1701, Feitian) planted in Henan Province, were determined and their structures were also characterized.Results showed that the SDF content (8.01 g/100 g) of Feitian wheat bran was the highest among the four kinds of wheat bran.The physicochemical properties analysis of SDFs suggested that there was no significant difference in the water solubility of SDFs among the four types of bran, all of which were more than 85%.The highest oil-holding capacity of SDFs was found in Feitian wheat bran (2.33 g/g), while Xin Wheat 45 possessed the highest bulk density (0.582 1 g/mL).Structure observation of the wheat bran SDFs revealed that there were some holes and cavities on the surface of SDFs in Kai Wheat 1701, Xin Wheat 26, and Feitian wheat bran.The X-ray diffraction results showed that the wheat bran SDFs were mainly composed of non-crystalline structures, and the Fourier transform infrared spectra of the four SDFs were similar, presenting the typical absorption peaks of polysaccharides.The results of monosaccharide composition analysis suggested that wheat bran SDFs mainly consisted of xylose, glucose, arabinose and galactose.What's more, Xin Wheat 45 and Kai Wheat 1701 contained a small amount of rhamnose.The research provides the theoretical basis and reference for the application of wheat bran SDF.

Key words： wheat bran; soluble dietary fiber; physicochemical properties; structure characterization

Cite this article

QUAN Wenbin , WANG Juan , HUANG Jihong , ZHANG Dale . Physicochemical properties and structural characterization of soluble dietary fiber of wheat bran[J]. Food and Fermentation Industries, 2024 , 50(21) : 259 -265 . DOI: 10.13995/j.cnki.11-1802/ts.037996

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