ANTIOXIDANT ACTIVITY OF TOTAL PHENOLIC COMPOUNDS OF TECOMELLA UNDULATA

Objective: the study aims to investigate the methanolic extract of different plant parts (leaves, stems, bark and roots) of Tecomella undulata (family Bignoniaceae), for their antioxidant activity and were used for quantitative estimation of the total phenolics as Gallic Acid Equivalent (GAE) per gram dry weight and total flavonoid as Quericitin Equivalent (QE) ) per gram dry weight Methods: The methanol extract of the leaves, stem, root and bark of Tecomella undulata were estimated for total antioxidant capacity using 1,1diphenyl picrylhydrazyl (DPPH) free radical scavenging assay, total phenolic and flavonoid contents using spectrophotometric methods. Results: maximum total phenolic content was recorded in stems (13.75±0.125 mgGAE/gdw) While maximum total flavonoid content was found in leaves (71.875±18.393 mQE/gdw) and Highest radical scavenging activity is observed in stems with IC50 value 92.29±7.693. Conclusion: It signifies that the Plant-derived phenolics and flavonoids represents good sources of natural antioxidants. From the above results it seen that this plant exhibits significant antioxidant activity.