Impact of post-harvest degradation of wheat gluten proteins by Fusarium culmorum on the resulting bread quality
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This study was conducted to investigate the impact of wheat gluten protein degradation during storage in a dough and bread system due to different levels of fungal contamination with F. culmorum. Therefore, artificially infected grains were stored in a model system and analysed for their gluten content and quality. This revealed a substantial loss in wet gluten content and a weakening of the gluten network in the infected samples during storage. Subsequently, the samples were used to bake wholegrain breads and the obtained dough and breads were analysed. Reduced quality as a consequence of storage was found for all samples, but in the infected samples to a greater extent than in the healthy grains. The breads presented a reduced quality, mainly due to their high bake loss, deformed loaf shape and open crumb structure. The reason for these results was mainly found to be due to the increased enzymatic activities originating from the fungal metabolism. Furthermore, the deterioration of the bread quality after storage was independent of the level of initial infection. Consequently, this study demonstrates the importance of optimal storage conditions and the development of efficient methods to suppress fungal proliferation during storage, in order to reduce economic losses and ensure a consistent high quality of the resulting products.
KeywordsFusarium culmorum Fungal infection Wheat storage Gluten Dough and bread quality
Financial support for this research was awarded by the Irish Government under the National Development Plan 2007–2013 through the research programme FIRM/RSF/CoFoRD. This research was also partly funded by the Irish Department of Agriculture, Food and the Marine.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Compliance with ethics requirements
This article does not contain any studies with human or animal subjects.
- 1.USDA (2013) Agricultural marketing service: grain and oilseed shipment sizes and distances hauled by rail. United States Department of Agriculture. Foreign Agricultural Service, Washington, DCGoogle Scholar
- 2.McGee H (2004) On food and cooking: the science and lore of the kitchen. Scribner, New York, p 517Google Scholar
- 3.Clark B, Bryson R, Tonguç L, Kelly C, Jellis G (2012) The encyclopedia of cereal diseases. 889 HGCA/BASF. http://www.hgca.com. Accessed 05 Dec 2014
- 8.GlutoPeak Test procedure (2016) Brabender, Duisburg, Germany http://www.brabender.com/english/food/products/quality-control/baking-conditions/glutopeakr.html. Accessed 01 Nov 2016
- 11.Perten Glutomatic “About Gluten” (2016) Perten instruments. http://www.perten.com/Products/Glutomatic/About-gluten/. Accessed 01 Nov 2016
- 16.Dexter JE, Clear RM, Preston KR (1996) Fusarium head blight: effect on the milling and baking of some Canadian wheats. J Cereal Chem 73(6):695–701Google Scholar
- 19.Meyer D, Weipert D, Mielke H (1986) Effects of Fusarium culmorum infection on wheat quality. Getreide Mehl Brot 40:35–39Google Scholar