Effects of blending ratios and baking temperature on physicochemical properties and sensory acceptability of biscuits prepared from pumpkin, common bean, and wheat composite flour

Development of functional cookies form wheat-pumpkin seed based composite flour

To develop high quality cookies, even seemingly smallest changes depended on factors that can affect taste, texture, and nutritional value. In this light, this study aimed to investigate the upshot of refined wheat flour and pumpkin seed flour on properties of cookies such as antioxidant activity, thermal and oxidative stability. In view of the foregoing, the roasted pumpkin seeds of particle size below 500 μm were blended with wheat flour at different ratios (BR) to bake at selected pre-determined temperatures (T) and time durations (TD). The synergetic effect of aforesaid parameters on cookie development, BR, T, and TD was studied by varying the parameters between the range 6-15 %, 180-200 °C and from 8 to 12 min, respectively, for the baking process of cookies. Further, the process was modelled and scrutinized using numerical optimization to achieve a highly acceptable product. On that account, it was deduced that the optimal condition for BR, T, and TD were 12.87 %, 186 °C and 9.5 min, respectively, that could pave to beget the excellent quality cookies with overall acceptance score of 8, protein content 14.28 %, fat 17.85 %, ash 2.23 %, moisture 2.46 %, fiber 2.38 % and total color difference 12.01. The optimized cookies (OCs) were found to have higher protein (11.49-14.28 %), fiber (0.93-2.41 %), ash (2.19-1.77 %), total antioxidant activity (38.7158-43.1860 %), oxidative stability (28.61-51.24 h), Zn (1.42-2.63 mg/100g), and Fe (2.12-3.20 mg/100g) content as compared to the control. Laconically, the study results provided the optimized processing condition for developing high quality cookies with respect to improved nutritional value and comparable overall acceptability.

Physicochemical, amino acid profile and sensory qualities of biscuit produced from a blend of wheat and velvet bean (Mucuna pruriens) flour

This study investigated the amino acid, physicochemical and sensory qualities of biscuit made from composite flours of wheat and velvet bean. The incorporation of velvet bean flour significantly increased (p < 0.05) the moisture (1.68-3.09%), ash (0.80-1.80%), crude fibre (1.05-1.40%), protein (6.23-8.10%) and fat (21.17-22.29%) while the carbohydrate content of the biscuits decreased significantly (68.74-63.60%). There were significant differences (p < 0.05) in weight, height and thickness of samples except for break strength. Methionine and lysine decreased significantly (p < 0.05) with the increasing substitution of the velvet bean flour. The biscuit samples containing 95:5 wheat-velvet bean seed flour (TAW) had the highest amino acid content for methionine (4.68 mg/100 g) and lysine (6.69 mg/100 g). The sensory evaluation showed that incorporation of velvet bean flour significantly decreased the sensory quality of the biscuit. Apart from the biscuit with 100% wheat (MAW), the biscuit containing 95:5; wheat: velvet bean flour (TAW) was the most liked with a score of 8.00. This study has shown that velvet bean flour incorporation in wheat flour can improve the nutritional quality of biscuits but negatively affect the sensory attributes. This research indicates that up to 25% inclusion of velvet bean is possible in producing biscuits with comparable sensory qualities to regular biscuits made with 100% wheat.

Dough Rheological Behavior and Bread Quality as Affected by Addition of Soybean Flour in a Germinated Form

This study analyzes the possibility of using soybeans as an addition to the main ingredients used to make bread, with the aim of improving its quality characteristics. To maximize the nutritional profile of soybeans they were subjected to the germination and lyophilization process before being used in bread making. The addition levels of 5%, 10%, 15%, and 20% germinated soybean flour (GSF) on dough rheology and bread quality were used. From the rheology point of view, the GSF addition had the effect of decreasing the values of the creep and recovery parameters: J_Co, J_Cm, μ_Co, J_max, J_Ro, J_Rm, and J_r. At the same time, the rheological parameters λ_C and λ_R increased. The GSF addition did not affect dough homogeneity as may be seen from EFLM analysis. Regarding the quality of the bread, it may be concluded that a maximum of 15% GSF addition in wheat flour had a desirable effect on loaf volume, porosity, elasticity, and sensory properties of the bread. The bread samples with GSF additions showed a higher brightness and a less pronounced red and yellow tint. When the percentage of GSF in wheat flour increased, the value of the firmness parameter increased and the value of the gumminess, cohesiveness, and resilience parameters decreased. The addition of GSF had a desirable influence on the crumb structure of the bread samples. Thus, taking into account the results of the determinations outlined above, it can be stated that GSF addition in wheat flour leads to bread samples with good quality characteristics.