Identifikasi Senyawa Metabolit Sekunder Pada Rumput Laut Coklat (Sargassum plagyophyllum) Dengan Metode Fraksinasi

Seaweed has potential as a source of bioactive compounds, food and medicine. One the seaweeds that to be used for its compounds is brown seaweed Sargassum plagyophyllum. Fractionation technique separating grouping chemical content extracts based on their polarity. This study aims determine components (secondary metabolites) flavonoids, alkaloids, steroids/terpenoids, saponins phenols qualitatively quantitatively from extract S. plagyophyllum by fractionation method. The research method was experimental. palgyiophyllum extracted using treatment given different polarity solvents consisted methanol, done with n-hexane, ethyl acetate, butanol. Extraction samples first after methanol diffracted acetate Parameter analysis phytochemical test (qualitative analysis) quantitative total phenol, flavonoid, saponin content. results showed qualitative testing secondary metabolites contained in were phenols, positive hexane fraction saponins, positively saponins. phenol while butanol contains While tested (0.18% saponins), then (0.14% 0.11% 0.12% phenol) (0.05% saponins).