Effects of Fertilizer on Wheat Flour Proteins
Author Information
Author(s): Susan B Altenbach, Charlene K Tanaka, William J Hurkman, Linda C Whitehand, William H Vensel, Frances M Dupont
Primary Institution: United States Department of Agriculture, Agricultural Research Service, Western Regional Research Center
Hypothesis
How does post-anthesis fertilization affect the protein composition of wheat flour?
Conclusion
Post-anthesis fertilization significantly increases the protein content and alters the composition of wheat flour, which can impact flour quality and allergenic potential.
Supporting Evidence
- Flour protein content doubled from 7% to 14% with post-anthesis fertilization.
- The ratio of high molecular weight glutenin subunits to low molecular weight glutenin subunits increased from 0.61 to 0.95.
- Significant changes in the proportions of 54 unique proteins were observed due to fertilization.
Takeaway
Adding fertilizer after flowering helps wheat plants make more protein, which can change how the flour behaves when baked.
Methodology
Wheat plants were grown with and without post-anthesis fertilization, and their flour protein composition was analyzed using quantitative 2-dimensional gel electrophoresis.
Potential Biases
Potential bias in protein identification due to the limitations of mass spectrometry techniques.
Limitations
The study may not account for all environmental variables affecting protein composition, and some proteins could not be identified due to low abundance.
Participant Demographics
Wheat plants of the cultivar Triticum aestivum 'Butte 86' were used.
Statistical Information
P-Value
p<0.02
Statistical Significance
p<0.02
Digital Object Identifier (DOI)
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