Effect of Rice Flour Replacement by Amaranth as Pseudocereals Native Gum (Eruca sativa) Addition on Improvement of Quantitative and Qualitative Properties of Gluten Free Cake

Nowadays, the use of pseudocereals flour in food formulations due to its high nutritional value, were increased. And also the absence of gluten protein in these food sources, the diet of patients with gluten intolerance is a good place for pseudocereals. So in this study possibility of replacing rice flour with Amaranth flour (0, 10 and 20%) and adding Mandab native gum (0, 0.25 and 0.50%) to gluten-free oily cake formulation was studied and then the quantitative and qualitative properties in a completely randomized factorial arrangement were evaluated (P≤0.05). Based on the results, it was found that by increasing the level of amaranth flour and mandab gum, the moisture content of the final product was increased. Also, the results indicated that the sample containing 20% amaranth flour and 0.5% mandab gum had the highest specific volume and porosity and lowest amount of firmness during 2 hours and one week after baking. On the other hand, the results indicated a decrease in the L* value by increasing levels of amaranth flour and also, increased the amount of L* value by adding mandab gum. Regarding to b* value it was observed that, with increasing in the level of amaranth flour, the amount of yellowness of the crust of the samples increased. Finally, the panelists introduced the samples containing 20% amaranth flour and 0.5% mandab gum as the best samples.