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

R Kuktaite, Helena Larsson, E Johansson

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    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.
    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
    DOIs
    Publication statusPublished - 2007
    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)
    Country/TerritoryArgentina
    CityMar del Plata
    Period2005/11/272005/12/02

    Subject classification (UKÄ)

    • Food Engineering

    Free keywords

    • protein composition
    • gluten quality

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