Antioxidant Activity and Bioactive Compounds of Ethyl Acetate Fractions from Syzygium cumini Wood Stem

Syzygium cumini is one of the endemic plants in Indonesia that has potential to be developed. The fruit was known have as a diabetes drug. However, very few studies determine medicinal and identification compounds wood stem never been studied before. Therefore, this study aimed antioxidant activity content ethyl acetate fraction. crude ethanol extract prepared from powder using maceration. Furthermore, it carried out by liquid-liquid fractionation process solvents different polarity. Antioxidant extract, hexane fraction, fraction determined spectrophotometric methods 1,1-diphenyl-2-picrylhydrazyl (DPPH). Analysis bioactive Thin Layer Chromatography (TLC). Identification functional groups support results TLC analysis Fourier-transform infrared (FTIR). Ethyl showed highest (IC50 13,62 µg/mL), followed 19,64 µg/mL) 61,25 µg/mL). lower than ascorbic acid with an IC50 value 2,85 µg/mL. strong activity. sample thought contain alkaloid, phenolic, flavonoid, terpenoid. assumption on agreement FTIR which were C-H, O-H, N-H, C=O, C=C aromatics constituents these compounds.