2020 Volume 13 Issue 2 Pages 30-41
The study determined the optimum process conditions to produce batuan fruit powder using combined Response Surface Methodology (RSM) and desirability function. The factors considered were sodium metabisulfite (SMS) concentration and drying temperature. Two-factor ANOVA revealed the significant responses among the physicochemical (bulk density, titratable acidity, total soluble solids, whiteness index) and functional (antioxidant activity, total phenolics, water absorption index, water solubility index) characteristics. The response that was not significant in the model was also identified (pH). Based on the results, the optimum drying temperature and SMS concentration were found to be 50.0 °C and 106 ppm, respectively. The powder was produced using the predicted optimum conditions and was analyzed for its physicochemical, functional, and sensory properties.
