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Ciência Rural

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ORO, Tatiana et al. Pasting properties of whole and refined wheat flour blends used for bread production. Cienc. Rural [online]. 2013, vol.43, n.4, pp.754-760.  Epub Mar 19, 2013. ISSN 0103-8478.

In whole wheat bread production in Brazil blends of whole flour (WF) with refined flour (RF) are used, which differ in their composition. Thus, the objective of this study was to investigate the pasting properties of WF with RF blends. Samples with 100% of WF, 100% of RF (controls) and blends of WF with RF in the proportions of 20, 40, 60 and 80% were analyzed, in a RVA (Rapid Visco Analyzer) equipment. The samples pasting temperatures were similar. The peak viscosity decreased proportionally with the increase of WF in blends. Higher values of breakdown and holding strength were found in flour with high viscosity peak. Final viscosity and setback values decreased as the content of WF in blends increased. The pasting properties of WF with RF blends must be seen in a combined way, because they affect bread production and storage. The results also showed that RVA can be used to help in formulating WF/RF blends with certain pasting properties.

Keywords : wheat meal; bread process; viscosity characteristics; RVA.

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