Optimasi Kondisi untuk Rendemen Hasil Ekstraksi Kulit Manggis (Garcinia mangostana L.)

Abstract

The aim of this study is to determine the levels of yield extract of mangosteen pericarp extracted using Response Surface Methodology (RSM) Central Composite Design (CCD) with various concentrations of ethanol (in the range of 45 to 96 %) and duration of microwave heating (in the range 5.8 to 34.1°C) or Microwal1e Assisted Extraction (MAE). The yield extract was calculated as percentage to the weight of origin. The results showed that optimum extraction conditions for yield extract were at ethanol concentration of 70% and heating time of 31.5 minutes which resulted in yield extract of 19.45%. More over, under these conditious resulted yield of 19.83%. The yield extract equatiQl) of mangosteen pericarp is Y -73,7ggJ + 0,5293 Xl + 2,4230 Xz O,0084X/ -0,00173 X/ , where XI is heating time and Xz is eth~nol concentration in water as solvent.