Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 66, Issue -, Pages 324-331Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2015.10.052
Keywords
Rheological properties; Viscosity; Creep; Recovery; Partially gelatinized starch
Categories
Funding
- Chinese Universities Scientific Fund [2015SP001]
- High Technology Research and Development Program of China [2011AA100802]
- Science and Technology Support Project of China [2013BAD10B03]
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Ten, twenty and thirty percent (g/100 g) of wheat flour was substituted with partially gelatinized corn starch or ungelatinized corn starch and the rheological properties of the resultant dough samples were investigated. The apparent viscosity of dough increased with the increase in the concentration and degree of gelatinization of partially gelatinized starch samples except in the case of dough substituted with starch sample with high gelatinization degree (96.78%) at 30 g/100 g concentration. The presence of partially gelatinized starch increased the storage (G') and loss (G '') moduli values and decreased the frequency sensitivity of dough samples. The dough prepared from wheat flour alone (control) showed the highest creep compliance and the lowest elastic recovery. In brief, the rheological properties of dough were influenced by the degree of substitution more than by the degree of gelatinization of substitutes. (C) 2015 Elsevier Ltd. All rights reserved.
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