Thermal Processing of Cowpea Slurries

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Abstract
Isochronal temperature profiles of 20% cowpea flour slurries showed conduction heating while the estimated Rayleigh numbers predicted natural convection heating; apparently, the flour particles suppressed convection. Magnitudes of fhof cowpea gels increased linearly with fat content, decreased with moisture content, and were independent of the cowpea flour particle size. The heating curve of a 10% cowpea flour slurry at 121°C showed one break due to gelation of protein and starch at about 66°C and another due to loss of rigidity at about 87°C.