Optimization of dielectric constant and ratio material to solvent using response surface methodology on antioxidant activity teter leaves extract (Solanum erianthum)

This research aimed at getting the optimum solvent dielectric constant and ratio teter leaves to solvents on the highest antioxidant activity of teter leaves extract. Response Surface Methodology (RSM) was used for the optimization of extraction conditions with the experimental design was a Central Composite Design (CCD) in two factors, namely solvent dielectric constant and ratio of teter leaves to solvent.