Fig. 2

Prediction profiler of practical yield (Y), zeta potential (ZP) and particle size (PS): A SE-CHEM, B SD-CHEM. The prediction profiler depicted CH (CH/EDTA ratio) as the most important independent variable, followed by DT (Drying temp.), for any change in responses of Y, ZP and PS (in both SE-CHEM and SD-CHEM). For A SE-CHEM, it showed that CH and DT had a positive (or additive) effect on a percentage yield (Y) and zeta potential ZP. CH and DT had a negative effect on PS. For B SE-CHEM, prediction profiler showed that CH and DT had a positive (or additive) effect on a percentage yield (Y) and zeta potential ZP. CH and DT had a negative effect on PS. With the use of prediction profiler, the variables value can be predicted as per needed desirability by dragging the function handles left or right in JMP