St Maryam
Fakultas Farmasi Universitas Muslim Indonesia

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PENGUKURAN AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN KELOR (Moringa oleifera Lam.) MENGGUNAKAN METODE FRAP (Ferric Reducing Antioxidant Power) St Maryam; Muzakkir Baits; Ainun Nadia
Jurnal Fitofarmaka Indonesia Vol 2, No 2 (2015): JURNAL FITOFARMAKA INDONESIA
Publisher : Faculty of Pharmacy, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.052 KB) | DOI: 10.33096/jffi.v2i2.181

Abstract

Measurement of antioxidant activity of ethanol extract of Marunggai leaves (Moringa oleifera Lam) was conducted. The aim research to obtain antioxidant activity using FRAP (Ferric Reducing Antioxidant Power). Marunggai leaves (Moringa oleifera Lam.) ware extracted using maceration method by ethanol 96 %. Free radical activity absorbance was measured with a spectrophotometer at a wavelength of 720 nm and the total value of antioxidant activity was calculated based on the data absorbance. The calculations showed that Marunggai leaves (Moringa oleifera Lam.) have the antioxidant activity with the value 7,923 mg AAE/g extract.
PERBANDINGAN AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN SIRSAK (Annona muricata L.) BERDASARKAN TEMPAT TUMBUH DENGAN METODE PEREDAMAN DPPH Aminah Aminah; St Maryam; Muzakkir Baits; Ummi Kalsum
Jurnal Fitofarmaka Indonesia Vol 3, No 1 (2016): JURNAL FITOFARMAKA INDONESIA
Publisher : Faculty of Pharmacy, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1248.635 KB) | DOI: 10.33096/jffi.v3i1.175

Abstract

Antioxidant activity assay has been conducted in order to determine the comparison of the antioxidant activity contained in the ethanol extract of the soursop leaves (Annona muricata L.) from Makassar, north Mamuju and Jeneponto. The amount of antioxidant activity obtained by testing against free radical DPPH (1,1-Diphenyl-2-picryl Hydrazyl) at concentrations of 10, 20, 30, 40 dan 50 ppm with 96% ethanol. The testing was done with the addition of 1 mL of the test solution with 4 mL DPPH 35 ppm. The absorbance of free radical activity was measured by UV-Vis spectrophotometer at the wavelength 515 nm and the IC50 value was calculated based on the absorbance data. The calculations showed that the soursop leaves from Makassar, North Mamuju, and Jeneponto had the IC50 value of 1.380 µg/mL, 1.512, and 1.420 respectively. The results showed that the samples came from Makassar had a higher antioxidant activity.
ANALISIS AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOLIK DAUN YODIUM (Jatropha multifida L.) DENGAN METODE CUPRIC ION REDUCING ANTIOXIDANT CAPACITY (CUPRAC) St Maryam; Randi Pratama; Nurmaya Effendi; Tadjuddin Naid
Jurnal Fitofarmaka Indonesia Vol 2, No 1 (2015): JURNAL FITOFARMAKA INDONESIA
Publisher : Faculty of Pharmacy, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (606.636 KB) | DOI: 10.33096/jffi.v2i1.185

Abstract

The research had been conducted about the analysis of antioxidant activity of yodium (Jatropha multifida L.) leaves using cupric ion reducing antioxidant capacity to determine the existance of antioxidant activity and to measure the antioxidant capacity in yodium (Jatropha multifida L.) leaves ethanolic extract using CUPRAC method. It was experimental research using CUPRAC method to prove the existance of antioxidant activity of yodium (Jatropha multifida L.) leaves. It was started by extracting the leaves using maseration using ethanol 96% solvent. The resulted extracts were analyzed quantitatively and qualitatively by adding CuCl2 solution, neucuproin, NH4Ac buffer system which were measured in UV-Visible spectrophotometer and analyzed at a wavelength of 450 nm. Based on data analysis, it was found that the askorbat acid equivalent (AAE) presentage of yodium (Jatropha multifida L.) leaves was 0.7385 ± 0.0521 mg L-1 AA g-1 extract.