期刊
JOURNAL OF TEXTURE STUDIES
卷 44, 期 4, 页码 317-332出版社
WILEY
DOI: 10.1111/jtxs.12027
关键词
Composite system; dough development; dough rheology; model dough; starch-gluten interactions; viscoelastic properties
During dough development, a number of different changes occur on different time and length scales. We present here a simplified physical model able to explain the main rheological changes occurring during this process. It is based on the view of dough as a continuous gluten polymer matrix, into which starch granules are embedded as filler particles. The overall viscoelastic properties of this system are governed not only by those of its matrix, but also by the interplay of its components' interactions, each dominating at different length scales. They can be separated by performing rheological measurements at different deformation levels. Their relative importance can also be probed via the use of starch/gluten model systems in which the volume fraction of filler is varied. Dynamic oscillatory measurements in the linear and nonlinear viscoelastic range were performed on model dough as well as on natural wheat flour dough at different stages of development.
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