Open AccessAntioxidant activity from ethanol extract of kupa leaves (Syzygium polycephalum(Miq.) Merr& L. M.Perry) using DPPH (2,2-diphenyl-1-picrylhydrazil) method
Author(s) -
Farid Perdana,
Isye Martiani,
D. Dhanti
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1402/5/055086
Subject(s) - dpph , maceration (sewage) , chemistry , antioxidant , ethanol , traditional medicine , chloroform , chromatography , botany , organic chemistry , biology , medicine , materials science , composite material
Kupa is one of the endemic plants from Indonesia belong to guava family (Myrtaceae). This research conducted to determine antioxidant activity of kupa leaves ( Syzygiumpolycephalum (Miq.) Merr& L. M. Perry) ethanol extract. Extraction of kupa leaves was carried out by maceration method using ethanol 96%. The antioxidant activity test was done qualitatively and quantitatively. The qualitative antioxidant test was carried out by Thin Layer Chromatography (TLC) using mobile phase chloroform: methanol: formic acid (8: 2: 1) and DPPH 0.2% spotting appearance. Quantitative testing of antioxidant was carried out using DPPH (2,2-diphenyl-1-picrylhydrazil) assays. The TLC test results showed yellow spot on the DPPH with Rf value 0.381. Kupa leaves ethanol extract had the lowest IC50 of DPPH scavenging activity 10.327 ppm which was a very strong antioxidant.