The influence of dough mixing time on wheat protein composition and gluten quality for four commercial flour mixtures

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The effect of mixing time on wheat protein composition and gluten formation was studied for three commercial flour mixtures (biscuit, standard and strong) and one durum flour. Ultracentrifugation was used to separate the fresh, wet gluten from the wheat-flour dough immediately after mixing. Small deformation dynamic theological measurements and RP- and SE-HPLC were used to determine the characteristics of the network formed, and the protein composition, respectively The gluten water content increased due to overmixing for most of the flours. However, no effect of mixing was observed for the storage modulus (G') of gluten for any of the flours. The value of G' of gluten was around 3, 3, 4 and 8 for Standard, Biscuit, Strong and Durum flour, respectively. Therefore, the increased water content during prolonged mixing was not related to the effect on G'. The strong flour resulted in the lowest G' for dough, a high G' for gluten and no increase in gluten water content with overmixing. The weaker standard flour resulted in the highest gluten water content, which increased considerably with mixing time. The durum flour did not show gluten development and breakdown similar to the other flours. The differences in large UPP, total UPP and large UMP between gluten from the different flours and mixing times originated from the genetic composition of flour proteins.

Details

Authors
  • R Kuktaite
  • Helena Larsson
  • E Johansson
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Food Engineering

Keywords

  • protein composition, gluten quality
Original languageEnglish
Title of host publicationWheat Production in Stressed Environments (Developments in Plant Breeding)
PublisherSpringer
Pages543-548
Volume12
ISBN (Print)978-1-4020-5497-6
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
Event7th International Wheat Conference (7 IWC) - Mar del Plata, Argentina
Duration: 2005 Nov 272005 Dec 2

Publication series

Name
Volume12
ISSN (Print)1381-673X

Conference

Conference7th International Wheat Conference (7 IWC)
CountryArgentina
CityMar del Plata
Period2005/11/272005/12/02