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Gluten protein transformations during bread processing: Molecular and microstructural analysis
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DOI：10.1016/j.lwt.2025.117341.png)
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Abstract
En 中文
The dynamic transformation of gluten was elucidated to understand the gluten network and texture variation during breadmaking. The results showed that as the dough progressed from mixing to baking, the content of alpha and beta-gliadins decreased significantly, while the glutenin subunit content and gluten macromolecular polymers increased. Moreover, the free sulfhydryl content decreased upon baking, indicating structural changes in the gluten network. As baking progressed, the role of hydrogen bonds and hydrophobic interactions diminished, while intermolecular beta-sheet content increased due to protein aggregation. The compact gluten structure with a high amount of protein junctions and total protein length during mixing and shaping was significantly different from the high lacunarity ratio in gluten after baking. Based on Pearson correlation analysis, the textural features of bread dough were connected with the transformation of the gluten molecular structure during breadmaking. Research on the transformation of gluten networks during breadmaking could provide valuable mechanistic insights for improving the quality of bread.
Keywords:
Bread processing
Gluten
Mixing
Baking
Microstructure
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IF:
6.6
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1.6W
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