Ditemukan 2 dokumen yang sesuai dengan query
Galuh Widiyarti
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ABSTRACT
Gambier (Uncaria gambier) is known to have antioxidant properties, and some studies have attributed it to the presence
of polyphenols such as catechin. The objective of this study is to investigate the potential of various gambiers available
in Indonesian market as a scavenger of reactive free
radicals and evaluate its anti-hyperglycemic activity as α-glucosidase inhibitor. Isolation of catechin was done by extraction method with technical grade of ethyl acetate as solvent. Analysis of catechin in the dried gambier ...
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[Direktorat Riset dan Pengabdian Masyarakat UI;Lembaga Ilmu Pengetahuan Indonesia (LIPI);Lembaga Ilmu Pengetahuan Indonesia (LIPI), Lembaga Ilmu Pengetahuan Indonesia (LIPI)], 2011
J-Pdf
Artikel Jurnal Universitas Indonesia Library
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Two flavonoid compounds, 5,7,3?,4?-tetrahydroxy-6-geranylflavonol (1) and kaempferol 7-O-β-glucose (2) have been
isolated from the leaves of Macaranga hispida (Blume), Mull.Arg. Isolation and purification were conducted by
chromatography methods and chemical structure characterization was carried out by spectroscopic methods. The
5,7,3?,4?-tetrahydrxyi-6-geranyl flavonol (1) and kaempferol 7-O-glucose (2) had moderate cytotoxic activity against
murine leukemia P-388 cell lines with IC50 value of 0.22 and 101.5 μg/mL, respectively. The IC50 for antioxidant
activities of (1) and (2) were 2.83 and 13.95 μg/mL, respectively. ...
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Tangerang Selatan: Research Center for Chemistry-LIPI, Region PUSPIPTEK Serpong, Banten, 2015
AJ-Pdf
Artikel Jurnal Universitas Indonesia Library
