02230nas a2200265 4500008004100000245016700041210006900208260001800277300001400295490000700309520138300316653001601699653001001715653002101725653002001746653001901766100001801785700003101803700002901834700002001863700002001883700002101903700000501924856003501929 2018 eng d00aTotal Phenolic, Total Flavonoid, Quercetin Content and Antioxidant Activity of Standardized Extract of Moringa oleifera Leaf from Regions with Different Elevation0 aTotal Phenolic Total Flavonoid Quercetin Content and Antioxidant cNovember 2018 as104-s1080 v103 a

Context: Moringa oleifera is the famous plant that has been used as medicinal plant for diverse pharmacological activity. Aims: To evaluate the total phenolic, total flavonoid, quercetin content as well as the antioxidant activity of standardized extract of Moringa oleifera (Lamk) leaf, collected from three regions with different elevation. Materials and Methods: The leaves were extracted by maceration method using ethanol 96% and evaporated by rotary evaporator to obtain the viscous extract. The determination of total phenolic and total flavonoid were performed by spectroscopic method, while the quercetin concentration were determined by high performance liquid chromatography (HPLC). The antioxidant activity was evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Results: Ethanolic extracts of Moringa oleifera leaf from region with medium altitude (Sigi regency) showed higher total phenolic, total flavonoid, quercetin concentration and antioxidant activity than regions with low and high altitude (Parigi and Palu cities). Conclusion: This study reveals the potency of standardized extracts of Moringa oleifera growing in medium altitude (Sigi regency) to be developed as antioxidant herbal medicine.

10aAntioxidant10aKelor10aMoringa oleifera10atotal flavonoid10atotal phenolic1 aSulastri, Evi1 aZubair, Muhammad, Sulaiman1 aAnas, Nurafni, Israyanti1 aAbidin, Syakila1 aHardani, Ririen1 aYulianti, Risfah1 a uhttps://phcogj.com/article/769