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        1 - Investigation of the Effect of Guar and Xanthan Gum and Sodium Stearoyl Lactylate on Qualitative Properties of Gluten-Free Sponge Cake, Based on Maize Starch and Okara
        M. Keshavarzipour H. Abbasi M. Fazel
        Introduction: Celiac is an autoimmune disease resulting from disorder in gluten digestion. Several researches have been made on its treatment and control. Gluten-free diet might be considered as the safest method. The purpose of the present study is to formulate gluten- More
        Introduction: Celiac is an autoimmune disease resulting from disorder in gluten digestion. Several researches have been made on its treatment and control. Gluten-free diet might be considered as the safest method. The purpose of the present study is to formulate gluten-free sponge cake based on okara (side product of soybean milk), as an appropriate protein and fiber based material and maize starch and improvement of its properties by using suitable additives. Materials and Methods: In the present study, the effects of guar and xanthan (%0-3) and sodium stearoyl lactylate (%0-1) on gluten-free cake properties based on okara and maize starch have been studied. The effects of independent variables on texture, color, density and porosity of the samples were modeled using response surface methodology. Results: By increasing the emulsifier, hardness, apparent modulus and chewiness decreased while springiness of the samples increased. The addition of more hydrocolloids had a reverse effect and led to increases in density and crust chrome. Finally the optimum concentration levels of variables were 1.2% xanthan and 1% sodium stearoyl lactylate in order to obtain the best qualitative properties. Conclusion: The application of appropriate additives at optimum levels is effective to improve the qualitative properties of prepared cake based on maize starch and okara. Due to the existence of high protein and fiber in okara, optimized sample had more nutritional value and less retrogradiation rate during storage than the control. This feature was related to the humidity retention of materials and the effects on reducing starch retrogradiation. Textural cohesiveness of optimum sample was maintained during storage. Manuscript profile