SENYAWA FENOLIK DARI KULIT BATANG Garcinia cf. cymosa DAN UJI AKTIFITAS ANTIOKSIDAN

SENYAWA FENOLIK DARI KULIT BATANG Garcinia cf. cymosa DAN UJI AKTIFITAS ANTIOKSIDAN

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ABSTRACT A Phenolic compound was isolated from Water Filtration Cartridges the bark of Garcinia cf.cymosa.Isolation methods were used are maseration, fractionation, and chromatography.

Structure determination was done using spectroscopy methods including IR, H-NMR, C-NMR, DEPT, COSY, HMQC, and HMBC.The result showed that the isolated compound is (-)epicatechin.Antioxidant activity of isolated compound was determined by DPPH method.

Isolated compound has Tie Downs antioxidant activity which has IC50 = 41,8 ppm.Keywords : Phenolic, (-)epicatechin, Garcinia cf.cymosa, DPPH.