Abstract

The effect of the amount of damaged starch in two different flours (wheat and triticale) on the bread quality and its behaviour during storage has been analysed. Two wheat and one triticale flour cultivars were milled in a disc mill to obtain different levels of damaged starch. Differential Scanning Calorimetry (DSC) and Rapid Visco Analyser (RVA) were used to characterize the flour properties and TA-XT2 textural analyses were made on breadcrumb. The effect of the damaged starch content on the bread firming, the amylopectin retrogradation and starch-pasting properties were studied in order to establish any relationship between damaged starch and bread staling. DSC analysis showed that the damaged starch content changed the thermal behaviour of flour–water mixtures: the higher the levels of damaged starch the lower the starch-gelatinization enthalpy and the higher the melting enthalpy of amylose–lipid complexes. The amount of amylopectin retrogradation and breadcrumb firming increased with the damaged starch content at the beginning of storage time; however, differences were decreasing at final storage time. The flour viscosity during pasting decreased as their damaged starch content increased.


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The authors would like to thank the Laboratorio de Idiomas (FCA-UNC) for providing useful suggestions to improve the English in this paper, and both the Agencia Córdoba Ciencia SE (ACC-SE) and CONICET-CSIC for financial support. Part of this work belongs to the joint research programme between CONICET and Consejo Superior de Investigaciones Cientificas (CSIC, Spain).
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León, A.E., Barrera, G.N., Pérez, G.T. et al. Effect of damaged starch levels on flour-thermal behaviour and bread staling. Eur Food Res Technol 224, 187–192 (2006). https://doi.org/10.1007/s00217-006-0297-x
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DOI: https://doi.org/10.1007/s00217-006-0297-x