Effect of malting on quality characteristics of wheat-malted sorghum-soybean composite flour was investigated. Composite flours from wheat, malted sorghum and soybean flour were made in the ratios: 85%:10%:5% (WSS1); 80%:15%:5% (WSS2) and 75%:20%:5% (WSS3). Whole sorghum flour (WSF) 100% served as control. Protein content of the composite flours ranged from 11.78% to 11.98%. Malted sorghum improved the protein content of the flour at substitution level greater than 10%. At 20% substitution with malted sorghum, crude fibre (1.98%) and total ash contents (3.96%) increased significantly suggesting a good source of minerals. Bulk density (0.86 g/ml), Water absorption capacity (1.67%) of the composite flours were not significantly different (p ≤ 0.05), but different from control (1.07%). Oil absorption ranged from 0.95% to 1.68%, and swelling capacity from 3.33 to 9.17 ml/g. Least gelation concentration ranged from 4.67% to 9.33%. Cyanide content (1.38 mg/g) was lowest in WSF. At 15% malted sorghum substitution phytate (1.14 mg/g) was lowest. Final viscosity ranged from 243.0 to 297.50 RVU, set back from 34.83 to 75.01 RVU, pasting temperature from 72.77˚C to 80.49˚C, and peak time from 4.10 to 5.46 min increased with increasing level of substitution. Peak viscosity (281.00 -434.92 RVU), holding strength (164.41 -221.06 RVU) and breakdown (59.25 -221. 06 RVU) decreased with increase in substitution. Malting improves the nutrient quality of wheat-malted sorghum-soybean composite flour. Composite flour with up to 20% malted sorghum substitution could find application in confectionary industries.
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