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Impact of fibers on physical characteristics of fresh and staled bake off bread

AutorRosell, Cristina M. ; Santos, Eva
Palabras clavePartially baked
Fecha de publicación11-ene-2010
CitaciónJournal of Food Engineering 98 (2): 273-281 (2010)
ResumenThe technological functionality of different fibers (high methylated ester pectin, resistant starch, insoluble-soluble fiber blend) was tested in partially baked breads stored either under sub-zero or low temperatures, in order to assess their possible role as breadmaking ingredients in bake off technologies (BOT). Fiber-containing formulations affected bread specific volume and crumb hardness, and those characteristics were also dependent on both the breadmaking process (conventional or BOT) and the storage conditions of the par-baked bread (low or sub-zero temperatures). The inclusion of resistant starch (RS) and fiber blend in the bread formulation induced a reduction in the specific volume of the bread and an increase of hardness. Crumb image analysis indicated that breadmaking process affected significantly the number of alveoli. The storage of par-baked breads at low temperatures accelerates crumb hardening during staling, and that effect was greatly dependent on the duration of the storage, being that effect magnified in the case of breads containing fiber blend. Therefore, formulations should be carefully checked with the specific breadmaking process to be followed. Special attention should be paid to the storage conditions of the partially baked bread, since they significantly affect the technological quality of fresh breads and their behaviour during staling.
Descripción9 pages, 3 figures, 2 tables.-- Printed version published May 2010
Versión del editorhttp://dx.doi.org/10.1016/j.jfoodeng.2010.01.008
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