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Frontiers of Agricultural Science and Engineering

Front. Agr. Sci. Eng.    2019, Vol. 6 Issue (3) : 279-287
Wheat gluten protein and its impacts on wheat processing quality
Wujun MA(), Zitong YU, Maoyun SHE, Yun ZHAO, Shahidul ISLAM
State Agriculture Biotechnology Centre, School of Veterinary and Life Sciences, Murdoch University, Perth WA 6150, Australia
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Before the advent of the wheat genomic era, a wide range of studies were conducted to understand the chemistry and functions of the wheat storage proteins, which are the major determinants of wheat flour the suitability of wheat flour for various end products, such as bread, noodles and cakes. Wheat grain protein is divided into gluten and non-gluten fractions and the wheat processing quality mainly depends on the gluten fractions. Gluten provides the unique extensibility and elasticity of dough that are essential for various wheat end products. Disulfide bonds are formed between cysteine residues, which is the chemical bases for the physical properties of dough. Based on the SDS-extractability, grain protein is divided into SDS-unextractable polymeric protein (UPP) and SDS-extractable polymeric protein. The percentage of UPP is positively related to the formation of disulfide bonds in the dough matrix. In the wheat genomic era, new glutenins with long repetitive central domains that contain a high number of consensus hexapeptide and nonapeptide motifs as well as high content of cysteine and glutamine residues should be targeted.

Keywords wheat gluten      consensus motifs      disulfide bonds      SDS-unextractable polymeric protein      glutenins      gliadins      processing quality      storage protein     
Corresponding Authors: Wujun MA   
Just Accepted Date: 27 May 2019   Online First Date: 25 June 2019    Issue Date: 26 July 2019
 Cite this article:   
Wujun MA,Zitong YU,Maoyun SHE, et al. Wheat gluten protein and its impacts on wheat processing quality[J]. Front. Agr. Sci. Eng. , 2019, 6(3): 279-287.
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Wujun MA
Zitong YU
Maoyun SHE
Shahidul ISLAM
Fig.1  Classification of wheat grain proteins
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