Purpose: The aim of this study was to isolate and identify the active compound antioxidant fractions from Gardenia jasminoides Ellis leaves. Research Method: activity determined using DPPH 0.1 mM (1:1), analyzed spectrophotometrically. In addition, separation performed column chromatography. most identified by UV-Vis, FT-IR, LC-MS/MS. quantitative analysis done in three replicated. Findings: It...