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All Journal Jurnal Kedokteran Universitas Palangka Raya
Meiliza Ekayanti
Program Studi Farmasi, STIKes Prima Indonesia, Babelan, Jawa Barat, Indonesia
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Public Health

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PENETAPAN FLAVONOID TOTAL DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DARI DAUN JAMBU AIR (Syzygium aqueum), DAUN JAMBU BOL (Syzygium malaccense) DAN DAUN JAMBLANG (Syzygium cumini) Devie Maulani Zaen; Meiliza Ekayanti
Jurnal Kedokteran Universitas Palangka Raya Vol 10 No 2 (2022): Jurnal Kedokteran Universitas Palangka Raya
Publisher : Fakultas Kedokteran, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jkupr.v10i2.5531

Abstract

The genus Syzygium family myrtaceae is one of the largest genus in Indonesia, of which species derived from guavas are water roseapple (Syzygium aqueum), red-jambo (Syzygium malaccense), and java plum (Syzygium cumini) which have natural antioxidant activity. This study aims to determine the total flavonoid content and antioxidant activity of species of the guava genus. The extraction method used in this research is cold extraction in the form of maceration with the choice of solvent ethanol 96%. The total flavonoid content test was carried out using the colorimetric method while the antioxidant power test used the DPPH (2,2-diphenyl-1-picridhydrazil) method. The results of total flavonoid levels in water roseapple is 156.897 ± 76.929 mgQE/g, red-jambo is 227.241± 107.882 mgQE/g and java plum is 239.425± 121.562 mgQE/g and the IC50 value for water roseapple is 5.416 ± 2,588 µg/mL, red-jambo is 3.297± 2.595 µg/mL and java plum is 2.416± 1.543 µg/mL. it can be concluded that jamblang leaf extract on total flavonoid levels and antioxidant test data obtained the highest antioxidant activity.
PENETAPAN FLAVONOID TOTAL DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN CENGKEH (Syzygium aromaticum (L). Merr) DAN DAUN SALAM (Syzygium polyanthum Thwaites) Mia Aklimah; Meiliza Ekayanti
Jurnal Kedokteran Universitas Palangka Raya Vol 10 No 2 (2022): Jurnal Kedokteran Universitas Palangka Raya
Publisher : Fakultas Kedokteran, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jkupr.v10i2.5536

Abstract

Syzygium aromaticum and Syzygium polyanthum are species of the Myrtaceae family. Clove leaves and bay leaves contain active compounds, namely flavonoids. This research was conducted with the aim of knowing the total flavonoid content and antioxidant activity of the ethanol extract of clove (Syzygium aromaticum) and bay (Syzygium polyanthum) leaves. The extraction method used in this research is cold extraction in the form of maceration with the choice of solvent, namely 96% ethanol. The total flavonoid content test was carried out using the colorimetric method while the antioxidant activity test used the DPPH (1,1-diphenyl-2-picridhydrazil) method. The results of total flavonoid content of clove leaf ethanol extract and bay leaf ethanol extract were 206.447 mgQE/g and 165,658 mgQE/g.. The IC50 for clove leaves was 3.026 μg/mL and the IC50 for bay leaves was 3.555 μg/mL. The conclusion of the study was that the extract from clove leaves on total flavonoid levels and antioxidant activity tests had the highest value.
Co-Authors Devie Maulani Zaen Mia Aklimah