Authors:Lj. Unbehend, G. Unbehend, and H.J. Kersting
Rheological properties and protein macro fraction of ten Croatian and five German wheat varieties were studied. Differences in dough rheological properties of German and Croatian wheat varieties were analysed by ANOVA. Multiple regression was used to determine the influences of protein macro fractions of Croatian and German wheat varieties on rheological properties of their doughs. The investigation had shown that Croatian and German wheat varieties had similar dough properties. Protein content and protein composition influenced many of investigated rheological parameters. However, most of the influences were found in the mixing properties of doughs in both German and Croatian wheat varieties. Dough development time, stability and the degree of softening from the Farinograph and dough strength from the Alveograph showed the highest correlation coefficients with the protein composition. Influences of protein macro fraction of Croatian wheat varieties and influences of protein macro fraction of German wheat varieties on rheological parameters showed some differences.
šećera. (Influence of hydrocolloids on the rheologicalproperties of model sugar solutions.) Kem. Ind , 40 , 63-68.
Utjecaj hidrofilnih koloida na reološka svojstva modelnih otopina šećera. (Influence of hydrocolloids on the
. (1998): Estudos de viabilidade sobre avaliação de qualidade de farinhas de trigo através de medidas das propriedades do gluten. (Evaluation of correlation study between wheat flour quality and rheologicalproperties of gluten.) Msc thesis. Faculdade de
Authors:M. Oszvald, S. Tömösközi, L. Tamás, and F. Békés
Structure and composition of wheat storage proteins and functional properties of wheat gluten are well studied; therefore several methods and instruments are available to determine these properties. The investigation of functional properties of rice proteins, depending on the different goal of utilisation, has not been well established, yet. In this study, the rheological properties of four varieties of rice flour were studied using a 50 g Farinograph demonstrating the mixing properties of rice flours and the alterations of these properties caused by the supplementation of wheat proteins. The considerable differences identified on the mixing curves of different rice flours indicate that the investigation of mixing properties can be one of the useful approaches for the characterisation of functional properties of rice dough. The large effects of the addition of wheat gluten on the mixing properties of rice flours demonstrate the possibility of using rice flour and dough as a wheat protein free model system for the in vitro investigation of the functional roles of wheat storage proteins.