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Título: | Influence of Amyloglucosidase in Bread Crust Properties |
Autor: | Altamirano Fortoul, Rossana CSIC ORCID; Hernando, Isabel; Rosell, Cristina M. CSIC ORCID | Palabras clave: | Color properties Amyloglucosidase Water activity Puncturing Microstructure Bread crust |
Fecha de publicación: | 2014 | Editor: | Springer Nature | Citación: | Food and Bioprocess Technology 7: 1037-1046 (2014) | Resumen: | Enzymes are used in baking as a useful tool for improving the processing behavior or properties of baked products. A number of enzymes have been proposed for improving specific volume, imparting softness, or extend the shelf life of breads, but scarce studies have been focused on bread crust. The aim of this study was to determine the use of amyloglucosidase for modulating the properties of the bread crust and increase its crispness. Increasing levels of enzyme were applied onto the surface of two different partially bake breads (thin and thick crust bread). Amyloglucosidase treatment affected significantly (P < 0.05) the color of the crust and decreased the moisture content and water activity of the crusts. Mechanical properties were modified by amyloglucosidase, namely increasing levels of enzyme promoted a decrease in the force (Fm) required for crust rupture and an increase in the number of fracture events (N wr) related to crispy products. Crust microstructure analysis confirmed that enzymatic treatment caused changes in the bread crust structure, leading to a disruption of the structure, by removing the starchy layer that covered the granules and increasing the number of voids, which agree with the texture fragility. © 2013 Springer Science+Business Media New York. | URI: | http://hdl.handle.net/10261/110806 | DOI: | 10.1007/s11947-013-1084-x | Identificadores: | doi: 10.1007/s11947-013-1084-x issn: 1935-5130 |
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