UJI AKTIVITAS ANTIOKSIDAN DAN PENETAPAN KADAR FENOLAT TOTAL FRAKSI AIR DAUN KETAPANG (Terminalia catappa L.) DENGAN METODE DPPH (2,2-diphenyl-1-picrylhydrazyl) DAN METODE FOLIN-CIOCALTEU

Abstract: The aqueous fraction of methanolic extract of Ketapang (Terminalia catappa L.). wasinvestigated for its DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenger activity andthe total amount of phenolic using Folin-Ciocalteu method. It was found that the aqueousfraction of methanolic extract of Ketapang tested showed significant DPPH free radicalscavenging with IC50 value 34,071 0,424 g/mL. The total phenolic amount was 5.429 0.110mg equivalent mass value of gallic acid per gram aqueous fraction of the methanolic extract ofketapang leaves.Keywords: aqueous fraction, methanolic extract, Terminalia catappa, DPPH, total phenolic

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vi, 146 hlm.; ilus.; 21 cm

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x, 146 hlm. : ilus. ; tab. ; 19 cm

UJI AKTIVITAS ANTIOKSIDAN DAN PENETAPAN KADAR FENOLAT TOTAL FRAKSI AIR DAUN KETAPANG (Terminalia catappa L.) DENGAN METODE DPPH (2,2-diphenyl-1-picrylhydrazyl) DAN METODE FOLIN-CIOCALTEU

Abstract: The aqueous fraction of methanolic extract of Ketapang (Terminalia catappa L.). was investigated for its DPPH (2,2-diphenyl-1-picrylhydrazyl) free radical scavenger activity and the total amount of phenolic using Folin-Ciocalteu method. It was found that the aqueous fraction of methanolic extract of Ketapang tested showed significant DPPH free radicalscavenging with IC50 value 34,071 ± 0,424 µg/mL. The total phenolic amount was 5.429 ± 0.110 mg equivalent mass value of gallic acid per gram aqueous fraction of the methanolic extract of ketapang leaves. Keywords: aqueous fraction, methanolic extract, Terminalia catappa, DPPH, total phenolic

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Buku ini menyajikan buah dan sayur dalam bentuk aneka jus. Buah dan sayur merupakan sumber vitamin dan mineral untuk memelihara fungsi tubuh dan membangun daya tahan tubuh dari serangan penyakit.Yogyakartaxii, 148 halaman ; 19 c