ACTA AGRICULTURAE BOREALI-SINICA ›› 2016, Vol. 31 ›› Issue (S1): 317-322. doi: 10.7668/hbnxb.2016.S1.053

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Effects of Grain Quality and Starch Components on Flour Paste Properties

ZHANG Yelun1, MENG Yaning2, LI Xingpu1, LAN Suque1   

  1. 1. Institute of Cereal and Oil Crops of Hebei Academy of Agriculture and Forestry Sciences, Hebei Laboratory of Crop Genetics and Breeding, Hebei Wheat Innovation Team of Modern Agro-industry Technology Research System, Shijiazhuang 050035, China;
    2. Institute of Cash Crops, Hebei Academy of Agricnlture and Forestry Sciences, Shijiazhuang 050051, China
  • Received:2016-09-25 Published:2016-12-28

Abstract: For the purpose of analyzing the correlations between flour paste properties and grain quality and starch components,70 wheat landraces and some highlines were tested for grain quality,such as grain protein content,kernel hardness,thousand-kernel-weight and unit weight,and starch components content and pasting properties,and their correlations were analyzed. The results indicated that pasting parameters showed significant correlations with different traits of indexes of grain quality and starch components content,despite of no significant correlations to grain protein content and amylopectin content. Amylose content showed mediate correlations to breakdown and setback(r=-0.48 and 0.45,respectively),and lower to peak viscosity and final viscosity(r=-0.48 and 0.45,respectively). Kernel hardness was significantly correlated to pasting temperature with a high correlation coefficient, r=-0.84,and to peak viscosity,setback and pasting time with low correlation coefficients(r=-0.28,0.33 and 0.36,respectively). Thousand-kernel-weight was significantly related to breakdown and pasting temperature with low correlation coefficients, r=-0.27 and -0.26,respectively,but unit weight showed higher correlations to trough and final viscosity(r=0.43 and 0.40,respectively). In all,breakdown and setback were mainly associated with amylose content,and high breakdown and low setback indicated low amylose content to some extent. Meanwhile,high peak viscosity and low final viscosity also means low amylose content to a certain degree. Higher unit weight often indicated trough and final viscosity were also high. High kernel hardness foreboded low pasting temperature to a great extent.

Key words: Wheat, Grain quality, Starch components, Paste properties

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Cite this article

ZHANG Yelun, MENG Yaning, LI Xingpu, LAN Suque. Effects of Grain Quality and Starch Components on Flour Paste Properties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2016, 31(S1): 317-322. doi: 10.7668/hbnxb.2016.S1.053.

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