Abstract

Cookies from the blends of malted sorghum flour, whole wheat flour and tiger nut flour were produced and evaluated. The experimental design used was a mixture design which was carried out using Design Expert. A total of 14 samples of the composite flour and one control (100% whole wheat flour) were obtained and used to bake the cookies. The functional properties were determined in the flours. Proximate composition, energy value, sensory evaluation and physical qualities of the cookies were also evaluated. The protein content of the baked cookies ranged from 7.63- 11.68%, the highest value was found in the control. There were also significant differences in fat (1.76-8.74%), fibre (0.98-2.57%), ash (0.95-5.56%) and calorie (346.68-396.54 kCal/100g) of the baked cookies. Cookie made from the blends of 50% malted sorghum, 35% whole wheat and 15% tigernut flours had the highest value of fibre which did not differ significantly from cookie made from the blends of 45% malted sorghum flour, 35% whole wheat flour and 20% tigernut flour which had the highest value of ash. The result of the physical properties showed that the diameter of the cookies ranged from 3.21-3.55 cm, the smallest value was found in the control. No significant differences existed in thickness but there were significant differences in spread ratio (3.18-4.12), breaking strength (400-850 g) and colour. All cookies baked with the composite flours were accepted by the judges and comparable with the control