Journal
FOOD CHEMISTRY
Volume 239, Issue -, Pages 295-303Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.06.122
Keywords
Wheat; Bread; Moisture; Dough hydration; Starch; Bioaccessibility; Digestibility
Funding
- University of Valladolid
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The objective of this study was to provide understanding about the efficacy of decreasing dough hydration to slow down starch digestibility in white bread. Breads were made with 45 (low hydration bread, LHB), 60 (intermediate hydration bread, IHB) and 75% (high hydration bread, HHB) water (flour basis). A hydration depletion down to 45%, which is close to the minimum hydration found in commercially available white bread, did not prevent the starch in the crumb from complete gelatinization. However, LHB and IHB crumbs were more resistant to physical breakdown during in vitro digestion than HHB crumbs, resulting in a 96.81% increase of slowly digestible starch (SDS) from 75 to 45% dough hydration. The degree of gelatinization in crust samples was significantly reduced with a depletion in the dough hydration, ranging from 29.90 to 44.36%, which led to an increase of SDS from 7.41 in HHB to 13.78% in LHB (bread basis). (C) 2017 Elsevier Ltd. All rights reserved.
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