Effect of low temperature extrusion-modified potato starch addition on properties of whole wheat dough and texture of whole wheat youtiao

Food Chem. 2023 Jun 30:412:135595. doi: 10.1016/j.foodchem.2023.135595. Epub 2023 Jan 30.

Abstract

In this study, low temperature extrusion-modified potato starch (MPS) was added to improve properties of whole wheat dough and textural quality of resulted youtiao. Extrusion temperature (60, 90 ℃) and barrel moisture content (30, 42 and 54%) were set as test variables. The results suggested that the low temperature extrusion processing caused moderate gelatinization and improved gel-forming properties of potato starch. MPS addition decreased the setback by up to 46%, and enhanced the viscoelasticity of whole wheat dough significantly. Compared to the whole wheat-based youtiao, the addition of 10% MPS decreased the hardness by up to 72%, and increased the springiness and specific volume by 32% and 22%, respectively. The addition of MPS prepared at lower extrusion temperature (60 ℃) and moderate moisture content (42%) resulted in the optimum textural qualities of whole wheat youtiao. This study will help better understand the role of MPS in whole wheat-based food product.

Keywords: Characteristic of the dough; Dough; Low-temperature extrusion; Potato starch; Texture; Whole wheat; Youtiao.

MeSH terms

  • Flour / analysis
  • Hardness
  • Solanum tuberosum*
  • Starch
  • Temperature
  • Triticum*

Substances

  • Starch