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  • Turkish Journal of Agricultural Engineering Research
  • Volume:2 Issue:1
  • Functional Properties of Extruded Corn Flour

Functional Properties of Extruded Corn Flour

Authors : Sharmila PATİL, Charanjit KAUR, Manoj Kumar PUNİYA, Archana MAHAPATRA, Jyoti DHAKANE LAD, Kirti JALGAONKAR, Manoj MAHAWAR
Pages : 167-174
View : 16 | Download : 9
Publication Date : 2021-06-30
Article Type : Research Paper
Abstract :Effect of extrusion cooking on hydration properties insert ignore into journalissuearticles values(water absorption index insert ignore into journalissuearticles values(WAI);, water solubility index insert ignore into journalissuearticles values(WSI););, and viscosity insert ignore into journalissuearticles values(peak viscosity insert ignore into journalissuearticles values(PV);, final viscosity insert ignore into journalissuearticles values(FV);); of corn flour was studied. The preconditioned corn flour was processed using different extrusion cooking conditions at the variable moisture content insert ignore into journalissuearticles values(MC);, temperature insert ignore into journalissuearticles values(T);, and screw speed insert ignore into journalissuearticles values(SS);. Statistical analysis showed that irrespective of variable processing parameters the hydration properties were improved after extrusion cooking. WAI and WSI were increased by 70 % to 268 % and 5 to 198 %, respectively over unextruded flour. The viscosity of extruded corn flour showed a significant insert ignore into journalissuearticles values(p<0.05); decrease, indicating high paste stability of corn flour after extrusion cooking. Overall, there was 72 to 86 % decrease in PV and 89 to 95% decrease in FV. The mild processing conditions insert ignore into journalissuearticles values(high MC, low SS, and low T); imparted better hydration properties, whereas severe processing conditions insert ignore into journalissuearticles values(low MC, high SS, and high T); imparted better paste stability to corn flour. Extruded corn flour with modified functional properties has the potential to be exploited in the development of various gluten-free ready-to-eat products, composite flours, bakery products, etc.
Keywords : Corn, Extrusion, Hydration properties, Viscosity, Pasting properties

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