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ABSTRACT

Antioxidant activities of Syzygium polyanthum leaves extracts (methanol, ethyl acetate, dichloromethane and nhexane) were evaluated by using DPPH (2,2-diphenyl-2-picrylhydrazyl) and ABTS (2, ABSTRAK Aktivitas antioksidan ekstrak daun Syzygium polyanthum telah dievaluasi menggunakan metode DPPH (2,2-diphenyl-2-picrylhydrazyl) dan ABTS (2,2'-azinobis (3-ethylbenzothiazole-6-sulfonic acid). Ekstrak metanol menunjukkan aktivitas antioksidan yang paling besar dibandingkan ekstrak lain melalui uji DPPH dengan nilai IC

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Cassia alata or locally known as Ketepeng Cina (Indonesia) and Gelenggang (Malaysia) has been used as a traditional medicine to treat various diseases, especially skin diseases. In addition, C. alata has been reported to have potential anti allergic, anti inflammatory, antioxidant, anticancer, antidiabetic, and antifungal. Metabolite compounds that have been isolated from C. alata include flavones, flavonols, flavonoids glycosides, alatinon, alanonal and β-sitosterol-β-D-glucoside. The compounds have been isolated mainly from the leaves. Further identification is needed to discover the secondary metabolites from other parts of the plant such as seed, flower and bark which are reported to have potent antibacterial and antifungal activity. Therefore, this article highlights the secondary metabolites and biological activity of this plant which has been shown to have pharmacological properties against selected diseases.

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