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Application Of Response Surface Methodology For Studying The Quality Characteristics Of Cowpea-Fortified Nixtamalized Maize, Samuel Sefa-Dedeh, Beatrice Cornelius, Esther Sakyi-Dawson, Emmanuel Ohene Afoakwa

Professor Emmanuel Ohene Afoakwa

Studies were conducted on the chemical and functional properties of fermented cowpea-fortified nixtamalized maize using response surface methodology. The central composite rotatable design for Ks3 was used to study the combined effect of lime concentration (0–1%), moisture content (55–65%) and cowpea level (0–30%) on pH, titratable acidity, water absorption, protein and viscosity of fermented nixtamalized maize. Regression models were developed to predict the variables. The presence of lime and cowpea influenced the pH, titratable acidity, water absorption, protein content and the cooked paste viscosity of the fermented cowpea-fortified maize. The presence of lime during fermentation generally decreased titratable acidity, water …