Quality Indicators of Rice-Based Gluten-Free Bread-Like Products: Relationships Between Dough Rheology and Quality Characteristics
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The design of gluten-free bread-like products involves the study of gluten-free dough rheology and the resulting baked product characteristics, but little information has been obtained connecting dough and baked product properties. The aim of this study was to determine quality predictors of gluten-free bread-like products at dough level by defining possible correlations between dough rheological properties and both instrumental parameters and sensory characteristics of those products. Diverse rice-based gluten-free doughs were defined and rheologically characterised at dough level, and the technological and sensorial quality of the resulting baked products was investigated. Dough Mixolab® parameters, bread-like quality parameters (moisture content, specific volume, water activity, colour and crumb texture) and chemical composition significantly (P < 0.05) discriminated between the samples tested. In general, the highest correlation coefficients (r > 0.70) were found when quality instrumental parameters of the baked products were correlated with the dough Mixolab® parameters, and lower correlation coefficients (r < 0.70) were found when sensory characteristics were correlated with dough rheology or instrumental parameters. Dough consistency during mixing (C1), amplitude and dough consistency after cooling (C5) would be useful predictors of crumb hardness; and C5 would be also a predictor of perceived hardness of gluten-free bread-like products.
KeywordsRice flour Gluten-free Wheat free Dough behaviour Bread quality
The authors acknowledge the financial support of Association of Coeliac Patients (Madrid, Spain), Spanish Scientific Research Council (CSIC) and the Spanish Ministry of Economy and Sustainability (Project AGL2008-00092/ALI and AGL2011-23802). M.E. Matos would like to thank predoctoral grant by the Council of Scientific and Humanistic Development of University Central of Venezuela (Caracas, Venezuela).
- Collar, C. (2003). Significance of viscosity profile of pasted and gelled formulated wheat doughs on bread staling. European Food Research Technology, 216, 505–513.Google Scholar
- FAO. Food and Nutrition Paper 77 (2003) Food energy-methods of analysis and conversion factors. FAO. Rome: Food and Agriculture Organization of the United Nation. ISSN 0254-4725.Google Scholar
- Hathorn, C. S., Biswas, M. A., Gichuhi, P. N., & Bowell-Benjamin, A. C. (2008). Comparison of chemical, physical, micro-structural, and microbial properties of breads supplemented with sweet potato flour and high-gluten dough enhancers. LWT-Food Science and Technology, 41, 803–815.CrossRefGoogle Scholar
- ICC. International Association for Cereal Chemistry (ICC) (1994) Standard No 110/1, 105/2, 104/1, 136.Google Scholar
- Onyango, C., Mutungi, C., Unbehend, G., & Lindhauer, M.G. (2011). Modification of gluten-free sorghum batter and bread using maize, potato, cassava or rice starch. LWT Food Science Technology, 44, 681–686Google Scholar