Phytochemical screening and antioxidant activity assessment of the leaf stem and root of (Labisia paucifolia).

摘要: Researches have focused on medicinal plants in order to extract natural and low cost antioxidants that can help protect the human body against oxidative stress replace synthetic additives might be carcinogenic. In present study, crude extracts of leaves, stems roots Labisia paucifolia were investigated for their phytochemical constituents antioxidant activities. The chemical compositions bioactive compounds determined using HPLC GC-MS activities measured by DPPH FRAP methods. results indicated leaves methanolic had highest total phenolic flavonoid contents with respective values 2.51 mg gallic acid equivalent g DW-1 1.29 rutin DW-1, compared stems. Meanwhile, analysis showed presence kaempferol as major all parts L. paucifolia. Other metabolites detected screening including 9,12,15-Octadecatrienoic acid, methyl ester (22.72%), 4H-Pyran-4-0ne,2,3-dihydro-35-dihydroxy-6-methyl (7.93%) acetic (9.02%) main leaf, stem root possess activity because free radical scavenging ferric reducing power higher leaf at a concentration 500 ig mL-1 53% 51%, respectively, root, but around 32-53% lower than those standards such BHT a-tocopherol. result revealed contain variable patterns flavonoids, phenolics various volatile it could applied source industrial purposes.