Abstract: Methanol and CH2-Cl2fraction of Dracontomelon dao leaves were proven as scavenger of 2,2-diphenyle-1-picrylhidrazyl (DPPH) radical that stronger than vitamine E. There were no previous study about effective concentration of CH2Cl2-methanol for extraction of Dracontomelon dao leaves. The were macerated and then the best concentration of CH2Cl2 -methanol extract was defined based on the highest percentage of DPPH scavenger activity and total flavonoid. The studies show that the best solvent is CH2Cl2-methanol with the comparison of 1:9.
Key word: Dracontomelon dao, extraction, effective concentration
Penulis: Yuniati , Sjarif Ismail dan Eva Marliana
Kode Jurnal: jpkimiadd100057
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